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Convert the following code from J to VB, ensuring the logic remains intact.
mean=: +/ % # (mean , */ %:~ #)^:_] 1,%%:2 0.8472130847939792 0.8472130847939791
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Generate a VB translation of this J snippet without changing its computational steps.
mean=: +/ % # (mean , */ %:~ #)^:_] 1,%%:2 0.8472130847939792 0.8472130847939791
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Convert the following code from J to Go, ensuring the logic remains intact.
mean=: +/ % # (mean , */ %:~ #)^:_] 1,%%:2 0.8472130847939792 0.8472130847939791
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Ensure the translated Go code behaves exactly like the original J snippet.
mean=: +/ % # (mean , */ %:~ #)^:_] 1,%%:2 0.8472130847939792 0.8472130847939791
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Write a version of this Julia function in C with identical behavior.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Write a version of this Julia function in C with identical behavior.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Preserve the algorithm and functionality while converting the code from Julia to C#.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Ensure the translated C# code behaves exactly like the original Julia snippet.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Translate the given Julia code snippet into C++ without altering its behavior.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Produce a language-to-language conversion: from Julia to C++, same semantics.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Rewrite the snippet below in Java so it works the same as the original Julia code.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Can you help me rewrite this code in Java instead of Julia, keeping it the same logically?
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Can you help me rewrite this code in Python instead of Julia, keeping it the same logically?
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Convert this Julia snippet to Python and keep its semantics consistent.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Change the programming language of this snippet from Julia to VB without modifying what it does.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Generate a VB translation of this Julia snippet without changing its computational steps.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Generate an equivalent Go version of this Julia code.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Produce a functionally identical Go code for the snippet given in Julia.
function agm(x, y, e::Real = 5) (x ≤ 0 || y ≤ 0 || e ≤ 0) && throw(DomainError("x, y must be strictly positive")) g, a = minmax(x, y) while e * eps(x) < a - g a, g = (a + g) / 2, sqrt(a * g) end a end x, y = 1.0, 1 / √2 println(" @show agm(x, y) println(" x, y = Float32(x), Float32(y) @show agm(x, y) println(" x, y = big(1.0), 1 / √big(2.0) @show agm(x, y)
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Rewrite this program in C while keeping its functionality equivalent to the Lua version.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Write a version of this Lua function in C with identical behavior.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Change the following Lua code into C# without altering its purpose.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Produce a functionally identical C# code for the snippet given in Lua.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Generate an equivalent C++ version of this Lua code.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Preserve the algorithm and functionality while converting the code from Lua to C++.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Produce a functionally identical Java code for the snippet given in Lua.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Keep all operations the same but rewrite the snippet in Java.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Convert the following code from Lua to Python, ensuring the logic remains intact.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Convert the following code from Lua to Python, ensuring the logic remains intact.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Rewrite the snippet below in VB so it works the same as the original Lua code.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Change the programming language of this snippet from Lua to VB without modifying what it does.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Please provide an equivalent version of this Lua code in Go.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Write the same code in Go as shown below in Lua.
function agm(a, b, tolerance) if not tolerance or tolerance < 1e-15 then tolerance = 1e-15 end repeat a, b = (a + b) / 2, math.sqrt(a * b) until math.abs(a-b) < tolerance return a end print(string.format("%.15f", agm(1, 1 / math.sqrt(2))))
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Rewrite this program in C while keeping its functionality equivalent to the Mathematica version.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Keep all operations the same but rewrite the snippet in C.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Keep all operations the same but rewrite the snippet in C#.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Generate an equivalent C# version of this Mathematica code.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Write the same algorithm in C++ as shown in this Mathematica implementation.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Rewrite the snippet below in C++ so it works the same as the original Mathematica code.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Please provide an equivalent version of this Mathematica code in Java.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Port the following code from Mathematica to Java with equivalent syntax and logic.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Change the programming language of this snippet from Mathematica to Python without modifying what it does.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Maintain the same structure and functionality when rewriting this code in Python.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Change the following Mathematica code into VB without altering its purpose.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Change the programming language of this snippet from Mathematica to VB without modifying what it does.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Translate this program into Go but keep the logic exactly as in Mathematica.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Keep all operations the same but rewrite the snippet in Go.
PrecisionDigits = 85; AGMean[a_, b_] := FixedPoint[{ Tr@#/2, Sqrt[Times@@#] }&, N[{a,b}, PrecisionDigits]]〚1〛
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Produce a language-to-language conversion: from MATLAB to C, same semantics.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Change the programming language of this snippet from MATLAB to C without modifying what it does.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Convert this MATLAB snippet to C# and keep its semantics consistent.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Rewrite the snippet below in C# so it works the same as the original MATLAB code.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Rewrite this program in C++ while keeping its functionality equivalent to the MATLAB version.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Convert this MATLAB block to C++, preserving its control flow and logic.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Write a version of this MATLAB function in Java with identical behavior.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Change the following MATLAB code into Java without altering its purpose.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Write a version of this MATLAB function in Python with identical behavior.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Generate an equivalent Python version of this MATLAB code.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Port the provided MATLAB code into VB while preserving the original functionality.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Rewrite this program in VB while keeping its functionality equivalent to the MATLAB version.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Convert the following code from MATLAB to Go, ensuring the logic remains intact.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Write the same algorithm in Go as shown in this MATLAB implementation.
function [a,g]=agm(a,g) while (1) a0=a; a=(a0+g)/2; g=sqrt(a0*g); if (abs(a0-a) < a*eps) break; end; end; end
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Produce a functionally identical C code for the snippet given in Nim.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Ensure the translated C code behaves exactly like the original Nim snippet.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Keep all operations the same but rewrite the snippet in C#.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Translate this program into C# but keep the logic exactly as in Nim.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Produce a language-to-language conversion: from Nim to C++, same semantics.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Transform the following Nim implementation into C++, maintaining the same output and logic.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Convert this Nim snippet to Java and keep its semantics consistent.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Port the provided Nim code into Java while preserving the original functionality.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Preserve the algorithm and functionality while converting the code from Nim to Python.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Please provide an equivalent version of this Nim code in Python.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Write the same code in VB as shown below in Nim.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Convert this Nim snippet to VB and keep its semantics consistent.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Generate an equivalent Go version of this Nim code.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Change the following Nim code into Go without altering its purpose.
import math proc agm(a, g: float,delta: float = 1.0e-15): float = var aNew: float = 0 aOld: float = a gOld: float = g while (abs(aOld - gOld) > delta): aNew = 0.5 * (aOld + gOld) gOld = sqrt(aOld * gOld) aOld = aNew result = aOld echo agm(1.0,1.0/sqrt(2.0))
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Rewrite this program in C while keeping its functionality equivalent to the OCaml version.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Rewrite the snippet below in C so it works the same as the original OCaml code.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Change the programming language of this snippet from OCaml to C# without modifying what it does.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Convert this OCaml snippet to C# and keep its semantics consistent.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Rewrite the snippet below in C++ so it works the same as the original OCaml code.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Write a version of this OCaml function in C++ with identical behavior.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Please provide an equivalent version of this OCaml code in Java.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Translate the given OCaml code snippet into Java without altering its behavior.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Convert the following code from OCaml to Python, ensuring the logic remains intact.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Rewrite the snippet below in Python so it works the same as the original OCaml code.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Rewrite this program in VB while keeping its functionality equivalent to the OCaml version.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Write the same code in VB as shown below in OCaml.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Translate this program into Go but keep the logic exactly as in OCaml.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Produce a language-to-language conversion: from OCaml to Go, same semantics.
let rec agm a g tol = if tol > abs_float (a -. g) then a else agm (0.5*.(a+.g)) (sqrt (a*.g)) tol let _ = Printf.printf "%.16f\n" (agm 1.0 (sqrt 0.5) 1e-15)
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }
Translate this program into C but keep the logic exactly as in Pascal.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Write a version of this Pascal function in C with identical behavior.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
#include<math.h> #include<stdio.h> #include<stdlib.h> double agm( double a, double g ) { double iota = 1.0E-16; double a1, g1; if( a*g < 0.0 ) { printf( "arithmetic-geometric mean undefined when x*y<0\n" ); exit(1); } while( fabs(a-g)>iota ) { a1 = (a + g) / 2.0; g1 = sqrt(a * g); a = a1; g = g1; } return a; } int main( void ) { double x, y; printf( "Enter two numbers: " ); scanf( "%lf%lf", &x, &y ); printf( "The arithmetic-geometric mean is %lf\n", agm(x, y) ); return 0; }
Convert this Pascal snippet to C# and keep its semantics consistent.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Convert this Pascal snippet to C# and keep its semantics consistent.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
namespace RosettaCode.ArithmeticGeometricMean { using System; using System.Collections.Generic; using System.Globalization; internal static class Program { private static double ArithmeticGeometricMean(double number, double otherNumber, IEqualityComparer<double> comparer) { return comparer.Equals(number, otherNumber) ? number : ArithmeticGeometricMean( ArithmeticMean(number, otherNumber), GeometricMean(number, otherNumber), comparer); } private static double ArithmeticMean(double number, double otherNumber) { return 0.5 * (number + otherNumber); } private static double GeometricMean(double number, double otherNumber) { return Math.Sqrt(number * otherNumber); } private static void Main() { Console.WriteLine( ArithmeticGeometricMean(1, 0.5 * Math.Sqrt(2), new RelativeDifferenceComparer(1e-5)). ToString(CultureInfo.InvariantCulture)); } private class RelativeDifferenceComparer : IEqualityComparer<double> { private readonly double _maximumRelativeDifference; internal RelativeDifferenceComparer(double maximumRelativeDifference) { _maximumRelativeDifference = maximumRelativeDifference; } public bool Equals(double number, double otherNumber) { return RelativeDifference(number, otherNumber) <= _maximumRelativeDifference; } public int GetHashCode(double number) { return number.GetHashCode(); } private static double RelativeDifference(double number, double otherNumber) { return AbsoluteDifference(number, otherNumber) / Norm(number, otherNumber); } private static double AbsoluteDifference(double number, double otherNumber) { return Math.Abs(number - otherNumber); } private static double Norm(double number, double otherNumber) { return 0.5 * (Math.Abs(number) + Math.Abs(otherNumber)); } } } }
Port the following code from Pascal to C++ with equivalent syntax and logic.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Maintain the same structure and functionality when rewriting this code in C++.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
#include "gmp.h" void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) { mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); } int main (void) { mpf_set_default_prec (65568); mpf_t x0, y0, resA, resB; mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for(int i=0; i<7; i++){ agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); } gmp_printf ("%.20000Ff\n", x0); gmp_printf ("%.20000Ff\n\n", y0); return 0; }
Write the same algorithm in Java as shown in this Pascal implementation.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Write the same code in Java as shown below in Pascal.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
public class ArithmeticGeometricMean { public static double agm(double a, double g) { double a1 = a; double g1 = g; while (Math.abs(a1 - g1) >= 1.0e-14) { double arith = (a1 + g1) / 2.0; double geom = Math.sqrt(a1 * g1); a1 = arith; g1 = geom; } return a1; } public static void main(String[] args) { System.out.println(agm(1.0, 1.0 / Math.sqrt(2.0))); } }
Rewrite the snippet below in Python so it works the same as the original Pascal code.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
from math import sqrt def agm(a0, g0, tolerance=1e-10): an, gn = (a0 + g0) / 2.0, sqrt(a0 * g0) while abs(an - gn) > tolerance: an, gn = (an + gn) / 2.0, sqrt(an * gn) return an print agm(1, 1 / sqrt(2))
Write the same algorithm in VB as shown in this Pascal implementation.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Rewrite the snippet below in VB so it works the same as the original Pascal code.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
Private Function agm(a As Double, g As Double, Optional tolerance As Double = 0.000000000000001) As Double Do While Abs(a - g) > tolerance tmp = a a = (a + g) / 2 g = Sqr(tmp * g) Debug.Print a Loop agm = a End Function Public Sub main() Debug.Print agm(1, 1 / Sqr(2)) End Sub
Translate this program into Go but keep the logic exactly as in Pascal.
Program ArithmeticGeometricMean; uses gmp; procedure agm (in1, in2: mpf_t; var out1, out2: mpf_t); begin mpf_add (out1, in1, in2); mpf_div_ui (out1, out1, 2); mpf_mul (out2, in1, in2); mpf_sqrt (out2, out2); end; const nl = chr(13)+chr(10); var x0, y0, resA, resB: mpf_t; i: integer; begin mpf_set_default_prec (65568); mpf_init_set_ui (y0, 1); mpf_init_set_d (x0, 0.5); mpf_sqrt (x0, x0); mpf_init (resA); mpf_init (resB); for i := 0 to 6 do begin agm(x0, y0, resA, resB); agm(resA, resB, x0, y0); end; mp_printf ('%.20000Ff'+nl, @x0); mp_printf ('%.20000Ff'+nl+nl, @y0); end.
package main import ( "fmt" "math" ) const ε = 1e-14 func agm(a, g float64) float64 { for math.Abs(a-g) > math.Abs(a)*ε { a, g = (a+g)*.5, math.Sqrt(a*g) } return a } func main() { fmt.Println(agm(1, 1/math.Sqrt2)) }