content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
An Extension to the Owa-Srivastava Fractional Operator with Applications to Parabolic Starlike and Uniformly Convex Functions
International Journal of Differential Equations
Volume 2009 (2009), Article ID 597292, 18 pages
http://dx.doi.org/10.1155/2009/597292
Research Article
An Extension to the Owa-Srivastava Fracti... | 5 | [
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Homework Help
Posted by Anonymous on Tuesday, October 30, 2012 at 8:17pm.
A bicycle has wheels of radius 0.32 m. Each wheel has a roatational inertia of 0.080 kg•m^2 about its axle. The total mass of the bicycle including the wheels and the rider is 79 kg. When coasting at
constant speed, what fraction of the total ki... | 4 | [
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Another Geometric Series Question.
April 10th 2009, 12:30 PM
db5vry
Another Geometric Series Question.
A geometric series has first term a and common ratio r. The sum of the first two terms of the geometric series is 7.2. The sum to infinity of the series is 20. Given that r is positive, find the
values of r... | 4 | [
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... | 30,702 | 30702 | |
Induction proof :D
September 16th 2006, 03:29 AM #1
Newbie
Joined
Aug 2006
Posts
12
Induction proof :D
Can you help me with this one? Take it slow please....
Show by induction: 2+2^2+2^3+.....+2^n=2*(2^n-1)
Thanks for all of your answers
Hello, Neffets!
LaTeX isn't back yet . . . Hope... | 4 | [
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Spectral Functions and Properties of Nuclear Matter
International Journal of Statistical Mechanics
Volume 2013 (2013), Article ID 317491, 5 pages
http://dx.doi.org/10.1155/2013/317491
Research Article
Spectral Functions and Properties of Nuclear Matter
^1Department of Nuclear Physics, Saint Petersburg State Universi... | 4 | [
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Prove prime p divides infinitely many members of 1, 11, 111, 1111...
February 5th 2011, 05:26 AM #1
Member
Joined
Sep 2008
Posts
79
Prove prime p divides infinitely many members of 1, 11, 111, 1111...
Prove that if p is prime and p > 5, then infinitely many members of the sequence 1, 11, 111, 1111, ... a... | 5 | [
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Simple Interest problem
April 2nd 2008, 10:10 AM #1
Newbie
Joined
Mar 2008
Posts
20
Simple Interest problem
Frances earns $6350 for completing a special project, she deposits it into a savings account. What annual simple interest rate is needed to have $7000 in 1 year?
I pasted this in from here: Si... | 4 | [
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toys question
January 17th 2011, 01:37 AM
prasum
toys question
n different toys can be distributed among n children total no of ways in which it can be distributed so that exactly one child gets no toy
January 17th 2011, 02:15 AM
emakarov
One first chooses an unlucky child (n ways) and then distributes n ... | 4 | [
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pb solving algebra II 10th grade
November 12th 2007, 01:45 PM
amrnat
pb solving algebra II 10th grade
This is what I have: One of the dolls that Dolls R Us manufactures is Talking Tommy (TT). Another doll without the talking mechanism is called SIlent Sally (SS). In one hour, the company can
produce 8 TT or ... | 4 | [
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[SOLVED] Difficult Problem..
February 24th 2009, 04:06 PM #1
Junior Member
Joined
Feb 2009
Posts
30
[SOLVED] Difficult Problem..
Hi i have a "challenge" problem that i have to solve. I have no idea how i should write the equation to solve this. I don't understand how I can make an equation to answer both... | 4 | [
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Homework Help
Posted by Jessica on Sunday, October 4, 2009 at 12:11am.
a pilot must fly a destination 520 km away in a direction of N30 degree E. The air speed of the plane is 320Km and the wind speed is 85 km/h E20 degree Suth. Find the heading of the plane and the
time for the trop.
• Physics - MathMate, Sunday, ... | 4 | [
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Homework Help
Posted by MS on Thursday, September 12, 2013 at 4:20am.
Find arc length of y=logx from x=1 to x=2.
dy/dx)^2=1/x^2
arc length=Int of [sqrt(1+1/x^2)]dx
=Int of [sqrt(1+x^2)/x^2]
=Int of [sqrt(1+x^2)]/x from x=1 to x=2.
How to proceed further to integrate?
• Calculus - Steve, Thursday, September 12,... | 4 | [
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Transmitted Waveform Design Based on Iterative Methods
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 949084, 10 pages
http://dx.doi.org/10.1155/2013/949084
Research Article
Transmitted Waveform Design Based on Iterative Methods
^1College of Computer and Communication Engineering, Northeastern Univers... | 4 | [
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Desirability Improvement of Committee Machine to Solve Multiple Response Optimization Problems
Advances in Artificial Neural Systems
Volume 2013 (2013), Article ID 628313, 9 pages
http://dx.doi.org/10.1155/2013/628313
Research Article
Desirability Improvement of Committee Machine to Solve Multiple Response Optimizati... | 4 | [
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Trapezoid Rule help?
February 23rd 2014, 06:31 PM #1
Member
Joined
Feb 2014
From
USA
Posts
231
Trapezoid Rule help?
So for this question: http://i57.tinypic.com/15i2m2o.jpg
I'm having trouble because I get a triangle instead of a trapezoid for the first trapezoid. Because It starts with (0,0). W... | 4 | [
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Spectral Intrinsic Decomposition Method for Adaptive Signal Representation
ISRN Signal Processing
Volume 2012 (2012), Article ID 457152, 10 pages
http://dx.doi.org/10.5402/2012/457152
Research Article
Spectral Intrinsic Decomposition Method for Adaptive Signal Representation
^1Laboratoire Images, Signaux et Systémes... | 4 | [
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another complex question
May 27th 2010, 11:30 PM
fredrick08
another complex question
$\int_{-\infty}^{\infty}\frac{1}{x^{6}+1}dx$
$=\int_{C}\frac{1}{z^{6}+1}dz$ i think.... a bit confused because there will be singularities in UHP and LHP...
$=\int_{C}\frac{1}{(z^{2}+1)(z^{4}-z^{2}+1)}dz$
$=\int_{... | 4 | [
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Homework Help
Posted by Neha on Sunday, October 21, 2012 at 7:23pm.
determine the value of k for which the fuction f(x)=4x^2-3x+2kx+1 has 2 zeros.
• Math - Reiny, Sunday, October 21, 2012 at 9:24pm
To have 2 zeros, or two real solutions, the discriminant must be positive
for 4x^2 - 3x + 2kx + 1
a = 4
... | 4 | [
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exponential equation
9^(x+1) + 3^(x+2) - 4 = 0 can anyone show me how to solve this.
Since $9^{x+1} = 9^x \cdot 9$ and $9 = 3^2$ it follows that $9^{x+1} = 9 \cdot (3^2)^x = 9 \cdot (3^x)^2$. Furthermore, $3^{x+2} = 3^x \cdot 3^2 = 9 \cdot 3^x$. Therefore your equation can be
re-written as $9 \cdot (3^x)^2 + 9 \cdot 3... | 4 | [
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... | 30,718 | 30718 | |
Math Help
September 26th 2008, 09:37 AM #1
Junior Member
Joined
Sep 2008
Posts
35
please help
Show that argument form with premises
(p ^ t) --> (r v s),
q --> ( u ^ t),
u --> p,
negation ~s
end up with conclusion q --> r
by using rules of inference
Thank you
i just w... | 4 | [
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Abstract Algebra: Proof Help
August 31st 2008, 09:18 AM #1
Newbie
Joined
Aug 2008
Posts
1
Abstract Algebra: Proof Help
I need help setting up this problem.
Let Q be the set of positive rationals. Consider the operation * defined by a*b =ab/a+b. Prove that * is an associative, commutative binary oper... | 5 | [
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Re: Rounding with Div and Mod operators
"John I. Moore, Jr." <jmoore@softmoore.com>
22 May 1999 02:56:24 -0400
From comp.compilers
| List of all articles ... | 4 | [
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Writing and composing position-dependent differential operators in Mathematica • /r/Mathematica
Writing and composing position-dependent differential operators in Mathematica (self.Mathematica)
submitted by pomadecellphone
sorry, this has been archived and can no longer be voted on
Hi everyone,
I have a lengthy que... | 4 | [
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0.03515625... | 30,722 | 30722 | |
Cantor Expansion
February 4th 2007, 07:57 PM #1
Member
Joined
Sep 2006
Posts
221
Cantor Expansion
A cantor expansion of an integer n (positive) is a sum
n = (a_m)m! + (a_(m - 1))(m - 1)! + ... + a_(2)2! + a_(1)1! where every a_j is an integer w/ 0 <= a_j <= j and a_m |= 0
Find the cantor expans... | 4 | [
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... | 30,723 | 30723 | |
Deriviative of function # 8
August 14th 2009, 12:31 PM #1
Senior Member
Joined
Nov 2008
Posts
425
Deriviative of function # 8
If y=5/2(e^(x/5)+e^(-x/5)), then prove that y''=y/25
Ok can someone just check with me.. I'm pretty close to the answer but i don't know what I did wrong ..
the final an... | 5 | [
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numpy.polynomial.chebyshev.chebint
numpy.polynomial.chebyshev.chebint¶
numpy.polynomial.chebyshev.chebint(c, m=1, k=[], lbnd=0, scl=1, axis=0)[source]¶
Integrate a Chebyshev series.
Returns the Chebyshev series coefficients c integrated m times from lbnd along axis. At each iteration the resulting series is ... | 5 | [
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0.02... | 30,725 | 30725 | |
Permutation
October 12th 2008, 02:53 AM
Geometor
Permutation
Hi, just to make sure I got the right idea.
In how many ways can the letters of the word MERETRICIOUS be arranged in a line?
Since there are 2E, 2I and 2R. Would the first answer be 12! / (2! 2! 2!)?
What is the probability that an arran... | 4 | [
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Math Help
By solving a suitable equation in k, find a positive integer k such that... $<br /> (x^2)^{20-k}(\frac{1}{x})^k=x<br />$
Apply properties of exponents: $<br /> \begin{gathered}<br /> \left( {x^2 } \right)^{20 - k} \left( {\frac{1}<br /> {x}} \right)^k = x \hfill \\<br /> x^{2\left( {20 - k} \right)} \left( ... | 4 | [
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Proving Trig Identity: Sine Difference
August 30th 2009, 04:17 PM #1
Newbie
Joined
Mar 2007
Posts
11
Proving Trig Identity: Sine Difference
In this figure, the triangle has hypotenuse 1.
I need to use it to show that:
$<br /> sin(A - B) = sinAcosB - sinBcosA<br />$
The hint is :
$<br /... | 4 | [
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Log questions
August 24th 2008, 01:55 PM #1
Newbie
Joined
Aug 2008
Posts
2
Log questions
This is for IB standard level math which is basically a review of everything through calculus and I'm having trouble remembering how to do some of this stuff. I have a test tomorrow so if anyone
could help me out... | 4 | [
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Trig word problem - angle of depression.
March 28th 2011, 05:57 PM #1
Junior Member
Joined
Mar 2011
From
Toronto
Posts
52
Trig word problem - angle of depression.
Here is the word problem.
A bird on top of a vertical pole looked South at an angle of depression of 35 Degrees, saw Icing, Maya's bu... | 4 | [
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Sequences and series
February 28th 2010, 07:26 AM #1
Junior Member
Joined
Nov 2009
Posts
28
Sequences and series
The second term of a geometric series is 24 and the fifth term is 3.
a. Show that the common ratio of the series is 1/2.
b. Find the first term of the series.
c. Find the sum to in... | 4 | [
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... | 30,731 | 30731 | |
-Process Nucleosynthesis in MHD Jet Explosions of Core-Collapse Supernovae
Journal of Astrophysics
Volume 2013 (2013), Article ID 506146, 13 pages
http://dx.doi.org/10.1155/2013/506146
Research Article
-Process Nucleosynthesis in MHD Jet Explosions of Core-Collapse Supernovae
^1Department of Physics, Kyushu Universi... | 4 | [
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Uniform Convergence and Spectra of Operators in a Class of Fréchet Spaces
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 179027, 16 pages
http://dx.doi.org/10.1155/2014/179027
Research Article
Uniform Convergence and Spectra of Operators in a Class of Fréchet Spaces
^1Dipartimento di Matematica e Fisic... | 4 | [
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Integration help?
November 13th 2012, 06:40 AM #1
Newbie
Joined
Oct 2012
From
UK
Posts
5
Integration help?
How would I go about integrating these two problems?
1.
2.
With #2, I know that Sin integrated is is -Cos x (+c), and that Cos integrated is Sin x (+c), but I'm not sure how to in... | 5 | [
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exact value check
March 14th 2009, 04:25 AM
jvignacio
exact value check
find the exact value of $cos(\frac{\pi}{8})$
$\cos\frac{\pi}{8} = \cos\left({\frac{1}{2}*\frac{\pi}{4}}\right)$
$\cos\frac{\pi}{8} = \pm\sqrt{\frac{1 - \sin\frac{\pi}{4}}{2}}$
$\cos\frac{\pi}{8} = \pm\sqrt{\frac{1 -\frac{\sqrt... | 4 | [
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Reducing Fractions
August 2nd 2006, 09:11 PM
pashah
Reducing Fractions
Reduce to the lowest terms.
_x + 4__ __x + 4__
x^2-x-12 + x^2 + 5x + 6
__3_ __c - 4___ __5__
4c+2 - 2c^2+c - 6c
August 3rd 2006, 12:07 AM
earboth
Quote:
Originally Posted by pashah
Reduce to the lowest term... | 4 | [
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Proposition 36
If three straight lines are proportional, then the parallelepipedal solid formed out of the three equals the parallelepipedal solid on the mean which is equilateral, but equiangular with the
aforesaid solid.
Let A, B, and C be three straight lines in proportion, so that A is to B as B is to C.
I say t... | 4 | [
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Real Valued Lebesgue Intergal
March 9th 2012, 10:03 PM
matt.qmar
Real Valued Lebesgue Intergal
Hello!
I'm trying to show that if f is a measurable function on some space X, and if
$\int{fd\mu} < \infty$
then $\mu\{x \in X : f(x) = \infty\} = 0$
In other words, trying to show f is real-valued ... | 4 | [
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reverse quotient rule and then integrating!!!!!! just not clicking!!!
April 11th 2013, 03:55 PM #1
Newbie
Joined
Apr 2013
From
staines
Posts
5
reverse quotient rule and then integrating!!!!!! just not clicking!!!
Hi, i have this initial-value problem....i need to use the reverse quotient rule, but i ... | 5 | [
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integration of trigonometric functions
September 27th 2009, 10:41 PM #1
Member
Joined
Dec 2008
From
Australia
Posts
161
could someone check this for me?
1. $\int (1+cos2x)sinx\ dx$
$\int (1+cos^2x -sin^2x)sinx\ dx$
$\int (2cos^2x)sinx\ dx$
$\int 2cosx.sinx.cosx\ dx$
$\int \frac{1}... | 5 | [
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0.02... | 30,740 | 30740 | |
gaussian integers/integral domains
November 27th 2007, 04:28 PM
eigenvector11
gaussian integers/integral domains
I am having some trouble with these problems:
1. Find all solutions of (x^2) - x + 2 = 0 over Z_3[i], where Z_3[i] =
{a + bi, where a, b are an element of Z_3} = {0, 1, 2, i, 1 + i, 2 + i, 2i... | 5 | [
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rubber band stretch problem
September 26th 2007, 01:37 PM
mistykz
rubber band stretch problem
The question is, is it true that if you stretch a rubber band by moving one end to the right and the other to the left, some point of the band will end up in its original position?
What I wrote:
Yes. You may s... | 4 | [
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Card spread probability
January 3rd 2009, 04:33 PM #1
Newbie
Joined
Jan 2009
Posts
2
Card spread probability
I play a card game called Spider Solitaire. For purposes of my question we can ignore the differences between suits but you still have the standard 13 cards per "set" (One through King). There
... | 5 | [
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A Comparison of Implications in Orthomodular Quantum Logic—Morphological Analysis of Quantum Logic
International Journal of Mathematics and Mathematical Sciences
Volume 2012 (2012), Article ID 259541, 8 pages
http://dx.doi.org/10.1155/2012/259541
Research Article
A Comparison of Implications in Orthomodular Quantum ... | 4 | [
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0.03564... | 30,744 | 30744 | |
Using Reliability Importance Measures
Using Reliability Importance Measures to Guide
Component Improvement Efforts
The component importance measure is an index of how much or how little an individual component contributes to the overall system reliability. It is useful to obtain the reliability importance value
of eac... | 4 | [
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Series of Multiplying Odd Numbers Involving Factorials?
June 9th 2009, 04:06 PM #1
Newbie
Joined
Jan 2009
Posts
24
Series of Multiplying Odd Numbers Involving Factorials?
So for a bonus question, my teacher asked anyone if they could figure out how to write an equation for the following: $(1)+(1*3)+(1*3*... | 5 | [
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0.00570... | 30,746 | 30746 | |
long chain rule
January 30th 2007, 05:03 PM #1
Member
Joined
Oct 2006
Posts
81
long chain rule
my brain is not working tonight...
what's the best way to deal with this prob using the chain rule?
cos^2(sin x)
Ha ha ha.
what's the best way to deal with this prob using the chain rule?
... | 5 | [
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Calculations on how Twilight didn't go flying off the gravity slide • /r/mylittlepony
Calculations on how Twilight didn't go flying off the gravity slide (self.mylittlepony)
submitted by IEnjoyFancyHats
sorry, this has been archived and can no longer be voted on
Edit: I did this calculation in superma... | 4 | [
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Trig. ratios and trig expressions
June 21st 2010, 03:40 PM #1
Newbie
Joined
Jun 2010
Posts
1
Trig. ratios and trig expressions
hi so i need help for these Two questions:
1. a) To find trigonometric ratios for 240 degrees using a unit circle, a Reference angle of 6 degrees is used. what reference ang... | 4 | [
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... | 30,749 | 30749 | |
Generalized Projectively Symmetric Spaces
Geometry
Volume 2013 (2013), Article ID 292691, 5 pages
http://dx.doi.org/10.1155/2013/292691
Research Article
Generalized Projectively Symmetric Spaces
^1Department of Mathematics, University of Mohaghegh Ardabili, P.O. Box 56199-11367, Ardabil, Iran
^2Faculty of Mathematic... | 4 | [
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-0... | 30,750 | 30750 | |
Differentiation
March 30th 2007, 07:21 AM #1
Newbie
Joined
Jan 2007
Posts
18
Differentiation
Please can you help, i can't figure it out.
Show that the derivative of:
x + y = x/y
can be written as
y^3/x^2(2-y)
The dfferentiation is really simple and i got
(1-y)/(x + 2y) when i... | 5 | [
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0.035888671875... | 30,751 | 30751 | |
Using quadratic theory to find max and min points on a graph?
November 4th 2012, 07:57 PM #1
Newbie
Joined
Mar 2012
From
Australia
Posts
5
This is in the subject content of an exam I plan to sit but I don't have my text book yet so I am working from free resources online, but I have never seen this be... | 4 | [
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Straight-Line Equations: Parallel and Perpendicular Lines
Straight-Line Equations:
Parallel and Perpendicular Lines (page 3 of 3)
Sections: Slope-intercept form, Point-slope form, Parallel and perpendicular lines
There is one other consideration for straight-line equations: finding parallel and perpendicular lines. H... | 4 | [
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p-sylow group abelian
February 22nd 2011, 04:00 PM #1
Junior Member
Joined
Oct 2010
From
Zulu-5
Posts
60
p-sylow group abelian
I am having some difficulties here and would like some guidance.
Let $G$ be a group such that $|G|=p^2q^2$ where $p,q$ are primes and $p>q$ and $q$ is not a divisor of $... | 5 | [
0.03271484375,
0.062255859375,
0.053955078125,
0.0380859375,
-0.04248046875,
0.060791015625,
-0.0029144287109375,
-0.0218505859375,
0.026611328125,
0.0014801025390625,
0.0133056640625,
0.0732421875,
-0.0306396484375,
0.07275390625,
-0.0133056640625,
0.036376953125,
-0.0341796875,
-... | 30,754 | 30754 | |
number of terms in geometric progression
December 8th 2010, 09:20 AM
sigma1
number of terms in geometric progression
obtain the number of terms in the following geometric progression
81, 27 , 9 , 1/243
can i find the number of terms using this
$ar^{n-1} = 1/243$
the answer that i get is a fra... | 4 | [
-0.0284423828125,
-0.0546875,
-0.05615234375,
-0.0057373046875,
-0.0380859375,
-0.01446533203125,
-0.020263671875,
0.03662109375,
0.0390625,
0.0050048828125,
-0.024169921875,
-0.0262451171875,
0.06103515625,
0.0086669921875,
0.019287109375,
-0.0152587890625,
-0.06787109375,
-0.0703... | 30,755 | 30755 | |
Simple Taylor Series
August 6th 2010, 05:09 PM #1
Newbie
Joined
Aug 2010
Posts
7
Simple Taylor Series
I just wanted to know if my answer to this problem is accurate:
2 degree taylor approximation around (0,0) for the following function:
e^x*ln(1+y)
f(0,0) + fx(0,0)x + fy(0,0)y + 1/2 fxx(0,... | 4 | [
0.041748046875,
-0.0888671875,
-0.00537109375,
-0.0042724609375,
0.05615234375,
-0.048583984375,
-0.033203125,
-0.01519775390625,
-0.050048828125,
0.00689697265625,
0.07958984375,
0.005889892578125,
-0.033935546875,
0.000255584716796875,
0.0169677734375,
0.01953125,
-0.1171875,
-0.... | 30,756 | 30756 | |
Need some urgent help please. Thanks
Determine an equation for the parabola with focus (3,0) and directrix x=7. Sketch Anyone help me out? Much appreciated. Thanks
The Focus point F and the Directrix line D are located in such a way that any point P of the parabola is the same distance from the focus point F as it is ... | 4 | [
0.0162353515625,
-0.0693359375,
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0.0235595703125,
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0.1015625,
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0.04052734375,
0.08642578125,
0.0400390625,
-0.02880859375,
0.07177734375,
-0.0196533203125,
0.046142578125,
-0.0859375,
-0.0859375,
... | 30,757 | 30757 | |
basic prob. questions
September 27th 2009, 12:19 PM
jimmyp
basic prob. questions
A box contains 24 yellow, 25 green and 27 red jelly beans.
If 15 jelly beans are selected at random, what is the probability that:
a) 5 are yellow?
b) 5 are yellow and 9 are green?
c) At least one is yellow?
I'... | 4 | [
-0.013916015625,
0.04150390625,
0.0751953125,
-0.01287841796875,
0.00286865234375,
0.130859375,
0.10498046875,
-0.0247802734375,
-0.010498046875,
0.0673828125,
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-0.0181884765625,
0.027587890625,
-0.07421875,
0.027099609375,
-0.0029144287109375,
0.02783203125,
-0.0... | 30,758 | 30758 | |
Finding Non-Homgenous Differential Equations
September 7th 2010, 05:02 AM #1
Super Member
Joined
Dec 2008
Posts
509
Finding Non-Homgenous Differential Equations
Hi
I am having problem trying to find $y_p$ of the equation:
$y=2\frac{d^2y}{dx^2}+4\frac{dy}{dx}+7y=e^{-x}cos(x)$
i tried $y_p =... | 5 | [
-0.10693359375,
-0.033935546875,
0.05810546875,
0.02587890625,
0.025146484375,
0.0027008056640625,
0.026611328125,
-0.025390625,
-0.0322265625,
0.051513671875,
0.0908203125,
-0.09912109375,
-0.0751953125,
0.0179443359375,
0.0732421875,
-0.0208740234375,
-0.023193359375,
0.046386718... | 30,759 | 30759 | |
A Comparative Study of Relaying Schemes with Decode and Forward over Nakagami-
Journal of Computer Networks and Communications
Volume 2011 (2011), Article ID 560528, 14 pages
http://dx.doi.org/10.1155/2011/560528
Research Article
A Comparative Study of Relaying Schemes with Decode and Forward over Nakagami- Fading... | 4 | [
0.02734375,
-0.0078125,
-0.00830078125,
0.015380859375,
0.033935546875,
-0.0927734375,
0.006805419921875,
-0.054443359375,
-0.00909423828125,
0.051513671875,
-0.04052734375,
0.11083984375,
0.05322265625,
-0.06494140625,
0.01251220703125,
0.00469970703125,
0.0576171875,
-0.004699707... | 30,760 | 30760 | |
[SOLVED] Conversion of Polar and Rectangular Equations
June 6th 2010, 02:19 PM #1
[SOLVED] Conversion of Polar and Rectangular Equations
I need to convert this rectangular equation into polar form:
$x^4 + 2x^2y^2 + y^4 = 2xy$
I know that $x = rcos\theta$ and $y = rsin\theta$. I've tried a little substitu... | 4 | [
0.043212890625,
-0.0242919921875,
-0.1171875,
-0.0189208984375,
0.0252685546875,
0.002197265625,
-0.059814453125,
0.045166015625,
-0.00396728515625,
-0.021728515625,
0.03759765625,
0.057861328125,
-0.003448486328125,
0.1337890625,
0.07861328125,
0.06982421875,
-0.0299072265625,
0.0... | 30,761 | 30761 | |
Find Average rate of change
December 15th 2008, 09:30 PM #1
Junior Member
Joined
Dec 2008
Posts
32
Find Average rate of change
f(x) = x^3 - 4x^2
find the avergae rate of change for x = a and x = a + h
is this correct?
this is what i got:
2a^3 + 2h^3 + h^3 + 2a^2h - 4a^2 / h
The avera... | 4 | [
0.060302734375,
0.0301513671875,
0.02978515625,
-0.0517578125,
-0.04736328125,
0.037353515625,
-0.09521484375,
-0.0286865234375,
0.037841796875,
0.03369140625,
0.11083984375,
-0.072265625,
0.06298828125,
-0.056396484375,
-0.0245361328125,
0.07568359375,
-0.036376953125,
-0.01141357... | 30,762 | 30762 | |
User:Timothee Flutre/Notebook/Postdoc/2011/11/10
From OpenWetWare
(Difference between revisions)
(→Bayesian model of univariate linear regression for QTL detection: fix typo + simplify) (→Bayesian model of univariate linear regression for QTL detection: fix typo sign lambda*)
← Previous diff ... | 4 | [
-0.0654296875,
0.01483154296875,
0.0751953125,
-0.0038909912109375,
0.07958984375,
-0.039306640625,
-0.00799560546875,
-0.00162506103515625,
0.028564453125,
0.03271484375,
0.1611328125,
0.03662109375,
0.08447265625,
0.05908203125,
0.00421142578125,
0.01422119140625,
-0.00303649902343... | 30,763 | 30763 | |
Triangle geometry problem
January 21st 2011, 04:51 PM
EdCoventry
Triangle geometry problem
Please can somebody help me with the following problem. I am trying to find x in terms of a,b and c (as per the attached diagram). I came up with the equation below, but this has turned out quite
complicated to resolve... | 4 | [
-0.09130859375,
0.08837890625,
0.0267333984375,
-0.01348876953125,
-0.0260009765625,
0.0986328125,
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0.024658203125,
-0.033203125,
0.034912109375,
0.0927734375,
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0.0400390625,
0.03515625,
0.038818359375,
-0.08203125,
-0.02490234375,
... | 30,764 | 30764 | |
How do I find the mean of categorical data?
April 21st 2010, 06:56 AM #1
Junior Member
Joined
Apr 2010
From
Riverside, CA
Posts
58
How do I find the mean of categorical data?
here is my problem:
I am doing this lab on streaks in basketball, like 0=miss, 1=hit once, 2= hit two in a row.. so on.
... | 4 | [
0.0576171875,
0.029052734375,
0.0113525390625,
-0.07275390625,
-0.06298828125,
0.025390625,
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0.0830078125,
0.019287109375,
0.01409912109375,
-0.0021209716796875,
-0.07763671875,
0.037353515625,
-0.044189453125,
0.02294921875,
0.0025634765625,
-0.07958984375,
-0.0361... | 30,765 | 30765 | |
Find Concavity and POI
August 5th 2009, 09:50 AM #1
Junior Member
Joined
Jul 2009
Posts
67
Find Concavity and POI
for $y= x^3-9x^2+27x$
from the first derivative $y'=3x^2-18x+27$
If found the critical no x = 3
and attempted the 1st deriv. test (-inf,3)(3,inf)
and tested with points 1,4 an... | 4 | [
-0.017578125,
-0.060546875,
-0.0194091796875,
-0.0203857421875,
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0.038818359375,
0.03955078125,
-0.00139617919921875,
0.1064453125,
-0.06689453125,
0.0869140625,
-0.0218505859375,
0.03515625,
-0.00012874603271484375,
-0.0260009765625,
-0... | 30,766 | 30766 | |
On the Existence of Solutions for the Critical Fractional
Laplacian Equation in
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 143741, 10 pages
http://dx.doi.org/10.1155/2014/143741
Research Article
On the Existence of Solutions for the Critical Fractional Laplacian Equation in
Department of Mathemati... | 5 | [
-0.109375,
-0.022216796875,
-0.0027923583984375,
0.06494140625,
0.0625,
0.00179290771484375,
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0.0145263671875,
0.059326171875,
-0.00872802734375,
0.07470703125,
-0.01470947265625,
0.02099609375,
0.009033203125,
0.034423828125,
-0.016357421875,
0.0179443359375,
-0.06... | 30,767 | 30767 | |
Homework Help
Posted by komal on Tuesday, April 19, 2011 at 8:44pm.
We can cut a square diagonally in half to get two triangles. Suppose the
perimeter of the square is 3cm longer than the perimeter of a resulting triangle.
What is the perimeter of the square?
• maths - Mgraph, Tuesday, April 19, 2011 at 9:41pm
... | 4 | [
0.04150390625,
0.034912109375,
-0.00592041015625,
0.0091552734375,
-0.01104736328125,
0.015869140625,
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0.044921875,
0.006622314453125,
0.040283203125,
0.0211181640625,
-0.01458740234375,
-0.01507568359375,
0.0191650390625,
0.060302734375,
0.019287109375,
-0.0072021484... | 30,768 | 30768 | |
Homework Help
Posted by Z32 on Thursday, September 24, 2009 at 7:54pm.
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.2 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 16 cm.
• Calculus - Christiaan, Thursday, September 24, 2009 at 8:06p... | 4 | [
0.035888671875,
0.0849609375,
0.08935546875,
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0.0294189453125,
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0.10693359375,
0.087890625,
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0.0125732421875,
0.08251953125,
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0.00494384765625,
-0.00994... | 30,769 | 30769 | |
Indefinite Integral Help
February 18th 2013, 03:40 AM
vanillachyrae
Indefinite Integral Help
Can you help show how to solve these??
Please kindly show the steps.
1. (x^2/3) - (x^1/4) / (x^1/2) dx
2. [x(x+2)] / (x^3 + 3x^2 - 5) dx
3. (X^3)(x^4 - 4x^2 + 4)^1/2 dx
4. [(x-1)/(x^5)]^1/2 dx
5.... | 5 | [
0.040283203125,
-0.052978515625,
0.036865234375,
0.0247802734375,
0.02734375,
-0.0498046875,
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-0.031494140625,
0.01556396484375,
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0.0296630859375,
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-0.0050048828125,
0.024169921875,
-0.07763671875,
0.0380859375,
0.02685546875,
0.00485... | 30,770 | 30770 | |
Math Help
April 27th 2010, 07:40 AM #1
Super Member
Joined
Aug 2009
Posts
639
cov
given that f and g are random variables where
values of f and g are( seen in the table below)
f: 8 5 3 5 7
g:9 7 3 8 8
find the sample covariance and variance of f and g.
may i know what formula i ha... | 4 | [
0.015869140625,
-0.0546875,
0.08544921875,
-0.033447265625,
0.0027923583984375,
0.0269775390625,
0.0224609375,
0.0108642578125,
-0.05419921875,
0.04541015625,
-0.005126953125,
-0.02685546875,
-0.046875,
-0.01251220703125,
-0.05712890625,
-0.0216064453125,
-0.029296875,
-0.012451171... | 30,771 | 30771 | |
convex set and extreme point
May 17th 2006, 10:09 PM
suedenation
convex set and extreme point
An nxn matrix is called a permutation matrix if there is exactly one 1 in each row and column, and all other entries are 0.
An nxn matrix A=(aij) is called doubly stochastic if aij>=0 for all 1<=i,j<=n, and the sum... | 5 | [
0.0103759765625,
-0.02392578125,
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-0.042236328125,
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0.04345703125,
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0.068359375,
0.07763671875,
-0.06640625,
... | 30,772 | 30772 | |
how do you decompose this into partial fraction?
September 10th 2010, 02:44 PM #1
Banned
Joined
Aug 2010
From
Singapore
Posts
93
how do you decompose this into partial fraction?
Express $\dfrac{2}{x(x^2+5)}$ in partial fractions.
What are the structures for the corresponding partial fractio... | 4 | [
-0.059326171875,
0.0673828125,
0.130859375,
0.03955078125,
0.05078125,
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0.03564453125,
0.05615234375,
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0.0546875,
0.0306396484375,
0.0260009765625,
0.043701171875,
0.03759765625,
-0.04077... | 30,773 | 30773 | |
BSNL Telecom Technical Assistant (TTA) 2008 Paper
1. If the matrix A = is singular, then ? =
a) 3 b) 4 c) 2 d) 5
2. A = is symmetric, then x =
a) 3 b) 4 c) 2 d) 5
3. If A is a 3 x 3 matrix and det(3 A) = k det(A) then k =
a) 9 b) 6 c) 1 d) 27
4. If A = , then A-1 =
a) b) c) d)
5. If A = then A2 is equal to
a) A b) –A ... | 4 | [
-0.10693359375,
-0.0023193359375,
-0.125,
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-0.017578125,
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-0.00653076171875,
-0.0625,
0.031005859375,
0.1376953125,
0.0020751953125,
0.0028076171875,
0.00189971923828125,
0.0174560546875,
0.0771484375,
-0.0673828125,
-0.0113525390625,... | 30,774 | 30774 | |
the encyclopedic entry of Tait-Bryan_rotations
The
Tait-Bryan rotations
, named after
Peter Guthrie Tait
and
George Bryan
. are three elemental
rotations
about each one of the
principal axes
of a body (but not necessarily the
principal axes of inertia
). For a craft moving in the positive
x
direction, wit... | 4 | [
-0.06787109375,
-0.0537109375,
-0.06005859375,
-0.10107421875,
-0.08251953125,
-0.0177001953125,
0.0311279296875,
0.003997802734375,
0.091796875,
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0.12890625,
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0.0130615234375,
0.021240234375,
0.01556396484375,
0.006378173828125,
-0.08740234375,
0.1127... | 30,775 | 30775 | |
Latin American applied research
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versión impresa ISSN 0327-0793
Lat. Am. appl. res. v.33 n.3 Bahía Blanca jul./sept. 2003
Modeling the electropherogram of small charged molecules in capillary zone electrophoresis
M. V. Piaggio^1 and J. ... | 4 | [
0.0184326171875,
-0.0279541015625,
-0.06640625,
-0.042724609375,
0.13671875,
-0.01904296875,
0.0250244140625,
0.0673828125,
0.032470703125,
0.01239013671875,
0.04833984375,
-0.0732421875,
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0.0693359375,
-0.10400390625,
-0.140625,
-0.06884765625,
-0.1025390625,
-0.... | 30,776 | 30776 | |
How to get the Hessian Matrix please?
September 28th 2008, 01:56 PM #1
Newbie
Joined
Aug 2008
Posts
12
I have got the following function constructed by matrices and vectors:
$<br /> f(x, \alpha) = \frac{1}{2}[(Ax-y_1)^2+(AP(\alpha)x-y_2)^2]<br />$
in which, $x, y_1, y_2$ are vectors. $A, P(\alph... | 4 | [
0.0302734375,
-0.0927734375,
-0.0693359375,
-0.103515625,
0.046875,
-0.01397705078125,
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0.0067138671875,
0.0194091796875,
0.10546875,
0.0255126953125,
0.04931640625,
-0.051025390625,
-0.017822265625,
0.03369140625,
0.1279296875,
-0.054931640625,
0.018310546875,
0.0... | 30,777 | 30777 | |
Question 2
October 16th 2006, 07:55 AM #1
Global Moderator
Joined
Nov 2005
From
New York City
Posts
10,616
Thanks
9
Question 2
A triangular number is the sequence:
1,3,6,10,15,21,...
A square number is the sequence:
1,4,9,16,25,...
Show that there are these two sequences contain... | 5 | [
-0.12060546875,
0.048095703125,
-0.00543212890625,
-0.0478515625,
-0.07568359375,
0.059326171875,
-0.0174560546875,
-0.055419921875,
0.05322265625,
-0.078125,
-0.0211181640625,
-0.018310546875,
0.0247802734375,
0.0034637451171875,
-0.036376953125,
-0.047119140625,
0.011474609375,
-... | 30,778 | 30778 | |
How are these indeterminate ?
I guess these are indeterminate in the sense that if $\lim_{x\to\infty} f(x)=0$ and $\lim_{x\to\infty} g(x)=\infty$, then $\lim_{x\to\infty}f(x)g(x)$ can be any number. For example, for $a>0$, $\lim_
{x\to\infty}\frac{1}{x}\cdot ax=a$. Similarly, $\lim_{n\to\infty}\left(1+\frac{a}{n}\right... | 5 | [
-0.041748046875,
-0.024658203125,
-0.051513671875,
0.0458984375,
0.0162353515625,
-0.050537109375,
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-0.030517578125,
0.04052734375,
0.052734375,
0.11767578125,
-0.00885009765625,
0.0196533203125,
0.017333984375,
0.00116729736328125,
-0.0341796875,
-0.02734375,
-0.0419921... | 30,779 | 30779 | |
concept behind finding volume between 2 curves
July 19th 2009, 07:19 PM #1
Senior Member
Joined
Jun 2009
Posts
251
concept behind finding volume between 2 curves
If there is an area between 2 curves and it's spun around the x-axis I integrate with respect to x, else if it's spun around the y-axis I integ... | 4 | [
-0.00634765625,
-0.057861328125,
0.0096435546875,
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0.07421875,
0.04541015625,
0.015625,
0.072265625,
0.060302734375,
0.0732421875,
0.1005859375,
-0.0028533935546875,
-0.00048828125,
0.000614166259765625,
-0.026245117... | 30,780 | 30780 | |
Trigonometric Sum
May 22nd 2009, 01:38 PM
magentarita
Trigonometric Sum
I would like you to show me how to get the amplitude and phase shift of the sum of the trigonometric sum below.
8sin(50pi*x+pi/4)+7sin(50pi*x-pi/3)
May 22nd 2009, 10:21 PM
Grandad
Trigonometry
Hello magentarita
Quote:
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Proof of Triple Scalar or Box product
February 4th 2010, 01:31 PM #1
Newbie
Joined
Feb 2010
Posts
2
[solved] Proof of Triple Scalar or Box product
Prove that (u cross v) dot w = u dot (w cross v)
This is called the triple scalar or box product
Please try it using a parallelpiped but be sure to ... | 5 | [
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Maximum Rate of Change of f(x,y,z). Gradient problem.
March 9th 2013, 06:44 AM #1
Member
Joined
Oct 2009
From
Detroit
Posts
157
Thanks
5
Maximum Rate of Change of f(x,y,z). Gradient problem.
I'm hoping someone could check my work. My answers are not the same as the text gives.
The question i... | 5 | [
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Roulette Probability
The best (and fairest) European roulette wheel online.
• Want to play on the most realistic online wheel?
• Want the best odds possible?
• Don't want to worry about whether or not the results are reliable?
Of course you do. I've been playing roulette at Bet365 for years, and I have no inte... | 4 | [
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0.036376953125,... | 30,784 | 30784 | |
A Review of Piecewise Linearization Methods
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 101376, 8 pages
http://dx.doi.org/10.1155/2013/101376
Review Article
A Review of Piecewise Linearization Methods
^1Department of Information Technology and Management, Shih Chien University, No. 70 Dazhi S... | 4 | [
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Arrays and pointers in C
Arrays and pointers in C
========================
(Thanks a lot to Steve Summit for the very illuminating comments,
thanks to Ilana Zommer for the excellent comments)
This is a short text on arrays and pointers in C with an emphasis
on using multi-dimensional arrays. The seemingly unr... | 4 | [
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Percent problem
July 6th 2010, 11:14 AM #1
Member
Joined
Jul 2006
Posts
90
Percent problem
The length of one side of a square is increased by 25%. By what percent would the length of the adjacent side have to be decreased so that the area of the new figure (which will be rectangular)
is the same as t... | 4 | [
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Smallest Symmetric Relation
March 13th 2010, 09:39 PM #1
Junior Member
Joined
Sep 2008
Posts
53
Smallest Symmetric Relation
I have this question for my homework, and I have absolutely no idea how to prove how a "smallest" relation exist. Any help is appreciated. Below is the question:
"Let X be any... | 5 | [
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0.0020751... | 30,788 | 30788 | |
Comunitative Group
March 17th 2012, 04:25 AM #1
Newbie
Joined
Oct 2011
Posts
24
Comunitative Group
Hey,
I have a small question about groups,
If you have a comunitative 'group' H = <a in H : a2=1>,
Is that enough information to show that it is a group, without knowing the binary operati... | 4 | [
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sand problem
February 27th 2010, 04:09 PM #1
Senior Member
Joined
Aug 2009
Posts
349
sand problem
ok sand pouring from a chute forms a conical pile whose height is always equal to the diameter. if the height increases at a constant rate of 5 ft/min, at what rate is sand pouring from the chute
when th... | 4 | [
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The Closed Graph Theorem and the Space of Henstock-Kurzweil Integrable Functions with the Alexiewicz Norm
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 476287, 4 pages
http://dx.doi.org/10.1155/2013/476287
Research Article
The Closed Graph Theorem and the Space of Henstock-Kurzweil Integrable Functions... | 5 | [
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Driver Rating Formula Explained
Home » fantasy
Driver Rating Formula Explained
Driver Rating is a Loop Data statistic which is based on several statistical components.
Below is an explanation of the formula, which is broken down into three different sections.
SECTION 1 – Primary Statistics
The “Primary Statistics” ... | 4 | [
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Group
August 16th 2012, 09:54 PM
resident911
Group
I have problems with the following exercises:
1)If G a group of order 364 . Prove that G has a normal subgroup of order 13.
2)Show that if a group G contains a nontrivial subgroup index 3, the group G is not simple.
I hope some help, thanks !
Au... | 5 | [
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Trouble in Math Land
August 1st 2005, 09:39 AM #1
v_sprint
Guest
Hello Math Gurus
i Have been trying to solve this for 4 days now..Its time I accept ..I need help
Here is the problem
Lets say i have an aaray in C say a[256][256][124]
hence a[0][0][0]=0
a[1][0][0]=1
and so on and so fort... | 4 | [
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Invariant Subspace
April 3rd 2011, 01:32 PM
letitbemww
Invariant Subspace
If T is an upper triangular matrix and Fk is the subspace of Rn defined as Fk = span{e1,...ek} where ei is the standard basis vector, show that Fk is an invariant subspace of T.
Then, if we restrict T to be a strictly upper triangular... | 5 | [
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Trig plotting and direct substitution
November 14th 2012, 01:21 PM
NettieL
Trig plotting and direct substitution
Really stuck with this question:
The suspension in a car acts like a
damped harmonic oscillator, that is, the oscillations in
the suspension rapidly die down with time. A model for th... | 4 | [
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Integration ln(x)
May 28th 2007, 07:43 AM #1
Newbie
Joined
May 2007
Posts
11
Integration ln(x)
I am new to this forum. Can anyone help me to integrate ln(x) over a circle having radius r. X is the distance from the center to the point, like r. I appreciate any help!
Thanks CaptainBlack! I am asked t... | 5 | [
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Multivariable calculus problem (Global Max/Min)
October 15th 2011, 10:45 PM #1
Newbie
Joined
Sep 2010
Posts
9
Multivariable calculus problem (Global Max/Min)
Find the global maximum and minimum of f(x,y) = (x^2) -2xy + 2y on the domain x ≥ 0, y ≥ 0 and y ≤ 2-x
Thanks.
Re: Multivariable calculus pro... | 5 | [
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Kernel and range of a linear Transformation
July 25th 2010, 08:05 PM #1
Newbie
Joined
Jul 2010
Posts
5
Kernel and range of a linear Transformation
$\ L:M_{22} \to M_{22}\$ be defined by $<br /> \ L(A)=\begin{bmatrix}<br /> 1 &2 \\ <br /> 1 & 1<br /> \end{bmatrix}A-A\begin{bmatrix}<br /> 1 &2 \\ <br /> 1 ... | 5 | [
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