content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
2 limit questions
P: 13 1. The problem statement, all variables and given/known data
What will be the limit of
a) [tex]lim_{n\rightarrow\infty}\frac{2+3^{n+1}}{(n+1)(2+3^{n})}[/tex]
b) [tex]lim_{x\rightarrow\infty} (x+1)ln(x+1) - x ln(x) ... | 5 | [
-0.11328125,
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-0.01092529296875,
0.00018215179443359375,
-0.0390625,
0.0189208984375,
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0.025634765625,
0.012451171875,
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-0.0133056640625,
-0.078125,
... | 23,800 | 23800 | |
Compute the LU factorization
January 6th 2011, 06:17 PM #1
Senior Member
Joined
Jan 2010
Posts
273
Compute the LU factorization
Compute the LU factorization of the matrix
A=
[2 1 1]
[4 1 0]
[-2 2 1]
and solve A[ $x_1$$x_2$$x_3$$]^T$ = ][8 11 3 $]^T$
using back substitution.
... | 5 | [
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0.01422119140625,
0.059326171875,
0.06884765625,
-0.0211181640625,
-0.05029296875,
-0.06591796875,
0.099609375,
-0.07177734375,
0.027221679... | 23,801 | 23801 | |
Need help computing laplace's eq. Uxx+Uyy+Uzz=0 given spherical coordinates for x,y,z
March 5th 2013, 07:13 PM #1
Junior Member
Joined
Feb 2013
From
Calgary
Posts
58
Need help computing laplace's eq. Uxx+Uyy+Uzz=0 given spherical coordinates for x,y,z
Hello,
We were given the question below as a... | 4 | [
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0.076171875,
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0.034423828125,
-0.0001468658447265625,
0.0074462890625,
0.01287841796875,
-0.00616455078125,
0.015625,
-0.1328125,
-0... | 23,802 | 23802 | |
Deriving normal and shear stresses
Hi
When we talk about shear stresses in a fluid, we find that the shear stress is given by
[tex]
\tau_{xy} = \mu(\partial_y u + \partial_x v) = \tau_{yx}
[/tex]
This relation we get when only looking at one side of our fluid-"cube". Now, in order to take into account the opposite sid... | 4 | [
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0.029541015625,
-0.07080078125,
0.07958... | 23,803 | 23803 | |
Calculating "o'clock" position
November 2nd 2008, 01:52 AM #1
Newbie
Joined
Nov 2008
Posts
3
Hi all,
My maths is very rusty, so apologies for any bad terminology.
I'm working on some programming which involves describing places on a roughly circular map (if you're interested...) relative to the ... | 4 | [
0.07666015625,
0.0771484375,
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0.078125,
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0.07177734375,
0.0240478515625,
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0.0126953125,
0.0072021484375,
0.046630859375,
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... | 23,804 | 23804 | |
Permutations HELP!
November 21st 2008, 08:51 AM
cnmath16
Permutations HELP!
Hi, I am currently learning Grade 12 Data Management online and I have come across a few questions that I am stuck on.
They are:
Solve for n where:
a) n! divided by (n - 2)! = 930 (4 marks)
b) P(n,5) = 42 x P (n, 3) (... | 4 | [
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0.002471923828125,
0.0126953125,
-0.08984375,
-0.062988281... | 23,805 | 23805 | |
Total Derivative vs. Directional Derivative
May 29th 2008, 05:52 PM #1
Junior Member
Joined
May 2008
Posts
37
Total Derivative vs. Directional Derivative
Hi,
I am having a little difficulty in understanding the following problem. I present it with some thoughts:
2) Give an example of a functio... | 5 | [
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0.00189208984375,
-0.06298828... | 23,806 | 23806 | |
Math Help
April 14th 2008, 02:54 PM #1
Member
Joined
Jan 2008
Posts
118
df..stats
n1=28
mean1=72.75
SD1=5.37225
n1=24
mean1=72.625
SD1=7.69987
Im finding a 90% confidence interval of the difference.
What is the df?
What is the t*?
I dont get it.
Are the sample... | 5 | [
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0.0228271484375,
-0.0... | 23,807 | 23807 | |
Can anyone prove sin(x) continuous
May 18th 2010, 11:33 AM #1
Newbie
Joined
May 2010
Posts
11
Can anyone prove sin(x) continuous
I am looking at the unit circle proof, and I cannot understand how abs(sinx-sinxo) is less than or equal to abs(x-xo). How is abs(x-xo) considered the length of the arc portion... | 5 | [
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0.06494140625,
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Variance of a poker tournament
April 8th 2011, 09:11 AM #1
Newbie
Joined
Feb 2011
Posts
21
Variance of a poker tournament
This is just an indepedent project I'm working on because I think it's fun.
Suppose we have a 9-man poker tournament. Buy in is 6.50, payouts go to 1st, 2nd and 3rd place like su... | 4 | [
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0.01... | 23,809 | 23809 | |
Posterior distribution
February 16th 2010, 06:55 PM
speedBoots
Posterior distribution
Question:
Let the unknown probability that a basketball player makes a shot successfully be Θ. Suppose your prior on Θ is uniform on [0,1] and that she then makes two shots in a row. Assume that the
outcomes of the two ... | 5 | [
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0.059326171875,
0.035400390625,
-0.043701171875,
0.00162506103515625,
0.056884765625,... | 23,810 | 23810 | |
Tautology, truth table
February 23rd 2009, 09:32 AM #1
Newbie
Joined
Feb 2009
Posts
20
Tautology, truth table
Alright so I have to make a truth table of the following to prove its a Tautology, meaning the whole value of the table is true. I have an issue of sometimes thinking things are correct when I am... | 4 | [
-0.0238037109375,
0.0299072265625,
0.060546875,
-0.032958984375,
-0.06640625,
0.051025390625,
0.053466796875,
0.009521484375,
0.009033203125,
0.0908203125,
-0.00092315673828125,
-0.0135498046875,
0.0498046875,
0.0732421875,
0.01446533203125,
0.12890625,
-0.103515625,
-0.02917480468... | 23,811 | 23811 | |
In a new lotto game, you must choose six numbers from the numbers 1 to 25. Six winn
April 10th 2008, 01:20 PM #1
Newbie
Joined
Sep 2007
Posts
21
In a new lotto game, you must choose six numbers from the numbers 1 to 25. Six winn
In a new lotto game, you must choose six numbers from the numbers 1 to 25.... | 4 | [
0.011962890625,
-0.0108642578125,
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0.0791015625,
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0.0771484375,
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0.09375,
0.01806640625,
0.00897216796875,
-0.01373291015625... | 23,812 | 23812 | |
Solve a Differential Equation
January 11th 2010, 07:28 PM #1
Junior Member
Joined
May 2008
Posts
56
Solve a Differential Equation
The equation is dy/dt=-ay+b where a and b are positve numbers. I have the solutions guide and it says that equation also equals dy/dt=-a(y-(b/a)) and then dy/(y-b/a)=-a. I can... | 5 | [
-0.1669921875,
-0.06689453125,
0.0198974609375,
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0.004119873046875,
0.0087890625,
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-0.01324462890625,
0.0274658203125,
0.0079345703125,
0.060302734375,
-0.0087890625,
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0.0810546875,
0.05322265625,
0.10107421875,
-0.07080078125,
-0.0366210937... | 23,813 | 23813 | |
Calculas: finding unknowns of polynominals
May 2nd 2008, 03:20 AM #1
Member
Joined
Mar 2008
Posts
95
Calculas: finding unknowns of polynominals
A cubic polynomial function f is defined by f(x)= 4x^3 + ax^2 + bx + k
Where a, b, and k are constants. The function f has a local minimum at x = -1, and th... | 5 | [
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0.009765625,
-0.06542... | 23,814 | 23814 | |
A man walks then runs...
June 20th 2009, 04:49 AM #1
A man walks then runs...
A man walks at a speed of 2 km/h for 45 minutes and then runs at 4 km/h for 30 minutes. Let $S$ km be the distance the man has run after $t$ minutes. The distance travelled can be described by:
$S(t)=\left\{\begin{array}{ll}at &\mb... | 4 | [
0.06494140625,
0.138671875,
0.045654296875,
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0.0791015625,
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0.050537109375,
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0.0634765625,
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0.03125,
0.02490234375,
0.038818359375,
-0.00225830078125,
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0.0078125,
-0.... | 23,815 | 23815 | |
Exact Value of the expression without a calculator
sin(3pi/12)cos(pi/12)+cos(3pi/4)sin(pi/12) I tried it like this sqrt2/2 (sqrt2/4+sqrt6/4)+(-sqrt2/2+? I'm not sure if how to approach it
sin(3pi/12) = sin(pi/4) and cos(3pi/4) = -cos(pi/4) so your expression becomes sin(pi/4)cos(pi/12) - cos(pi/4)sin(pi/12) = sin[(pi/... | 4 | [
-0.001617431640625,
0.0712890625,
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0.002166748046875,
0.0703125,
0.004791259765625,
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0.0023956298828125,
-0.0169677734375,
0.053466796875,
0.049072265625,
-0.03662109375,
-0.041748046875,
... | 23,816 | 23816 | |
A New Circuit Model for Spin-Torque Oscillator Including Perpendicular Torque of Magnetic Tunnel Junction
Advances in Condensed Matter Physics
Volume 2013 (2013), Article ID 169312, 6 pages
http://dx.doi.org/10.1155/2013/169312
Research Article
A New Circuit Model for Spin-Torque Oscillator Including Perpendicular To... | 4 | [
-0.0712890625,
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0.056640625,
-0.032470703125,
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0.0986328125,
-0.005859375,
0.052001953... | 23,817 | 23817 | |
Physics Forums - Finding Kernel and Image of Matrix transformation
To write matrices or other math formulas, use LaTeX. There are a number of tutorials on the internet. On this board you begin LaTeX code by [ tex ] (without the spaces) and end with [ \tex ] (without
the spaces). You can do "in line" LaTeX with [ itex ... | 5 | [
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0.0308837890625,
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0.0218505859375,
-0.0001773834228515625,
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0.0693359375,
-0.01324462890625,
-0.01092529296875,
0.02001953125,
-0.0228271484375,
0.01116943359375,
-0.0966... | 23,818 | 23818 | |
falling body
October 25th 2010, 06:48 PM
Zamzen
falling body
A free falling body has no initial velocity. Its mass is 80kg and the air resistence is proportional to the velocity squared with the proportional constant 0.16kg/m.Let velocity be y m/s and x s.
And the question is to put up a differential equatio... | 4 | [
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-0.01416015625,
0.06298828125,
0.006683349609375,
0.037109375,
-0.03833007... | 23,819 | 23819 | |
factorials
may i know how to prove the theorem that factorials beat exponentials?
sorry, i dont really get what you are trying to hint to me. how do i make use of this formula to show that eg the fraction of an exponential over factorial will tend to 0?
Here's a much simpler way. We know $e^a = \sum_{n=0}^\infty \fra... | 5 | [
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0.09375,
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0.052490234375,
0.0634765625,
-0.01806640625,
-0.0218505859375,
0.036865234375,
0.... | 23,820 | 23820 | |
Analysis of Fractal Wave Equations by Local Fractional Fourier Series Method
Advances in Mathematical Physics
Volume 2013 (2013), Article ID 632309, 6 pages
http://dx.doi.org/10.1155/2013/632309
Research Article
Analysis of Fractal Wave Equations by Local Fractional Fourier Series Method
^1School of Mathematics and ... | 5 | [
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0.00848388671875,
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-0.04736328125,
-0.007720947265625,... | 23,821 | 23821 | |
Numerical Method for the Time-Space Fractional
International Journal of Differential Equations
VolumeΒ 2010Β (2010), Article IDΒ 464321, 22 pages
http://dx.doi.org/10.1155/2010/464321
Research Article
Stability and Convergence of an Effective Numerical Method for the Time-Space Fractional Fokker-Planck Equation wit... | 5 | [
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0.017822265625,
0.020751953125... | 23,822 | 23822 | |
Archimedean series
October 5th 2009, 06:49 AM #1
Junior Member
Joined
Jul 2009
Posts
25
Archimedean series
This problem has left me scratching my head:
The modern (and Archimedean!) meaning of “the series Σ ai (where i goes from 0 to ∞)converges to A" isusually captured by a definition like:
(*)... | 4 | [
-0.06201171875,
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-0.00311279296875,
-0.054931640625,
-0.... | 23,823 | 23823 | |
Various Derivative Problems
October 2nd 2007, 07:11 PM #1
Newbie
Joined
Aug 2007
Posts
24
Various Derivative Problems
I'm having trouble with these problems not sure where to start. Any help is greatly appreciated.
1.) Find all values of
2.) Find an equation for the line tangent to the grap... | 5 | [
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0.0296630859375,
0.01025390625,
0.15625,
-0.09130859375,
0.... | 23,824 | 23824 | |
Nature of roots of quadratic equations
Register to reply
by thornluke
Tags: equations, nature, quadratic, roots
P: 37 1. The problem statement, all variables and given/known data
The equation kx^2 - 3... | 4 | [
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0.017578125,
0.05517578125,
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0.0157470703125,
-0.0615234375,
0.034912109375,
-0.0157470703125,
0.01080322265625,
0.056640625,
-0.006317138671875,
-0.04467... | 23,825 | 23825 | |
notes on math
Construction of a Polynomial Having as its Root a Number Generated by Polynomial Roots
If ${\alpha_1...\alpha_n}$ are roots of polynomials ${f_1(x),...,f_n(x)}$ over a field ${K}$ of degrees ${d_1,...,d_n}$ respectively, and ${g(x_1,...,x_n)}$ is a polynomial over ${K}$ with respect to
n variables ${x_1,... | 5 | [
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0.0213623046875,
-0.0274658203125,
-0.09375,
-0.0150146484375,
0.0693359375,
-0.126953125,
0.0991210937... | 23,826 | 23826 | |
Homework Help
October 14th 2007, 08:36 AM #1
Newbie
Joined
Mar 2007
Posts
16
Homework Help
1) The time required for a pendulum to complete one round trip of motion is given by T=2pie(squareroof of (g/32). Solve the formula for g. Assume all variables represent positive quantities.
2)A local fitness... | 4 | [
0.007476806640625,
0.03271484375,
0.0732421875,
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0.007171630859375,
0.014404296875,
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0.037353515625,
-0.04296875,
-0.0537109... | 23,827 | 23827 | |
Two quick questions
March 8th 2013, 10:05 PM #1
Junior Member
Joined
Mar 2013
From
New Zealand
Posts
35
Two quick questions
Question 1
If I have matrix v1 = (1,-1,2) v2 = (4,-6,7) and v3 (-1,1,k)
Am I right in saying that if k = -2, v1,v2,v3 is linearly dependent, because v3 = -1(v1)?
An... | 5 | [
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Complex numbers: Argument of Z help
August 6th 2009, 04:27 AM #1
Complex numbers: Argument of Z help
I'm having some problems with finding, in radians, the argument of z and adding rotations of 180 to keep it in range. I know that I have to use:
$tan=\frac{y}{x}$
and I know exact trigonometric ratios, a... | 4 | [
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Patent US6134344 - Method and apparatus for improving the efficiency of support vector machines
FIELD OF THE INVENTION
This invention relates generally to universal learning machines, and, in particular, to support vector machines.
BACKGROUND OF THE INVENTION
A Support Vector Machine (SVM) is a universal learning ma... | 4 | [
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A proof regarding rank
So the "rank" of $\alpha$ is the dimension of $\alpha(V)$ as a subspace of W. If w is in $(\alpha+ \beta)(V)$ then there exist v in V such that $(\alpha+ \beta)v= \alpha(v)+ \beta(v)$ is in W.
Certainly that is true if $\alpha(v)$ and $\alpha(v)$ are in W. Do you see why that means that $(\alpha+... | 4 | [
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-0.01287841796875... | 23,831 | 23831 | |
Remainder Problem
September 30th 2010, 10:05 AM
Janu42
Remainder Problem
What is the remainder when 40! is divided by 1763?
I know this would be much easier if 1763 was prime, but it's not. So I don't see how Fermat's Little Theorem or Wilson's Theorem are applicable.
I know it comes down to 40! = x (m... | 5 | [
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0.0018844604492187... | 23,832 | 23832 | |
Prove that if G is an abelian group then it's order is at least 6
I need to show that all groups of smaller orders are abelian but i'm not sure how to do this.
I'm almost sure you meant "prove that if a group is NON-abelian then its order is > 5, which of course is true ==> you need to prove all the groups of order <=... | 4 | [
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... | 23,833 | 23833 | |
A Whole Bunch Of Factoring...Help
November 3rd 2008, 11:56 AM #1
Newbie
Joined
Nov 2008
Posts
14
A Whole Bunch Of Factoring...Help
Guys if you could just help me with any of these problems it would greatly be appreciated..I just can't seem to get factoring..thanks again
1. Factor completely: 4u^2-7u... | 4 | [
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Yet another triple integral..
June 4th 2010, 10:42 PM #1
This is certainly not my favorite calculus topic.
$\int_{-7}^7\int_{-\sqrt{49-y^2}}^{\sqrt{49-y^2}}\int_{-\sqrt{49-x^2-y^2}}^{\sqrt{49-x^2-y^2}} (x^2z+y^2z+z^3)dzdxdy$
I am to solve this by converting to spherical coordinates.
I guessed the reg... | 5 | [
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... | 23,835 | 23835 | |
Calculus: Use limits to show that the function is continuous at the given number a.
Use the definition of continuity and the properties of limits to show that the function is continuous at the given number a.
f(x)= (x+2x^3)^4, a=-1.
PLEASE HELP ME WITH THIS PROBLEM. THANK YOU!
-
If f(x) is continuous at x = a, then:... | 4 | [
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... | 23,836 | 23836 | |
remainder problem
i dont know what is mod and how do we solve it can u give step by step method
For information about mod, modulus, & mod operator: use Google There are hundreds of essays on the subject far better than anything I could do. For the Exponentiaion Algorithm or Russian Peasant
Algorithm, Russian Peasant M... | 5 | [
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probability density function
February 23rd 2006, 08:37 AM #1
Junior Member
Joined
Feb 2006
Posts
32
probability density function
Hey,
Can anyone help me with the following question:
f(x) = K(1+x)^n such that x>0
and
f(x) = 0 otherwise.
for some constants K and n.
For what valu... | 4 | [
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... | 23,838 | 23838 | |
recursive sequence
July 5th 2008, 10:30 PM #1
Member
Joined
Jun 2008
Posts
170
recursive sequence
Suppose a sequence is defined by $a_0 = 0$, $a_1 = 1$, and $a_{n+1} = \frac{1}{2}\left(a_{n}+a_{n-1}\right)$ for $n \geq 2$. Prove $a_n$ converges and determine its limit.
So $a_n = \frac{1}{2}\left(a_{... | 5 | [
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Suppose that m,n,q,r are integers satisfying n=mq+r. Then gcd(m,n)=gcd(m,r).
March 12th 2013, 10:15 AM #1
Newbie
Joined
Mar 2013
From
United States
Posts
2
Suppose that m,n,q,r are integers satisfying n=mq+r. Then gcd(m,n)=gcd(m,r).
Suppose that m,n,q,r are integers satisfying the identity n=mq+r. T... | 4 | [
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Evaluation of a partial derivative using the chain rule
September 25th 2009, 11:11 AM #1
Junior Member
Joined
Sep 2009
Posts
29
[SOLVED] Evaluation of a partial derivative using the chain rule
I was solving a practice test for the GRE math subject test and I came across a problem which I thought was unso... | 5 | [
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... | 23,841 | 23841 | |
Equations with Common Roots
August 17th 2009, 04:53 PM #1
Senior Member
Joined
Jul 2008
Posts
347
1. Show that, if the equations x^2 + 2px + q = 0 and x^2+2Px+Q=0 have a common root, then (q-Q)^2+4(P-p)(Pq-pQ)=0.
2. Find the conditions that the equations x^2+2x+a=0 and x^2+bx+3 should have a common r... | 4 | [
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The Poisson distribution » Pro-football-reference.com blog
SITE NEWS: We are moving all of our site and company news into a single blog for Sports-Reference.com. We'll tag all PFR content, so you can quickly and easily find the content you want.
Also, our existing PFR blog rss feed will be redirected to the new site's... | 4 | [
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Modeling Dominant Height Growth in Planted
International Journal of Forestry Research
Volume 2012 (2012), Article ID 902381, 12 pages
http://dx.doi.org/10.1155/2012/902381
Research Article
Modeling Dominant Height Growth in Planted Pinus pinea Stands in Northwest of Tunisia
^1National Institute of Research in Rural... | 4 | [
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... | 23,844 | 23844 | |
Patent US6381264 - Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system
CROSS REFERENCE TO RELATED APPLICATIONS
This patent is a continuation of U.S. patent application Ser. No. 08/669,771, filed Jun. 27, 1996, which claims priority from U.S. Provisional Application 60/000,77... | 4 | [
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Good Math/Bad Math
Busy Beavers
After spending all this time talking about the different kinds of computing machines and what they
can
do, I thought it would be fun to talk a little bit about what they
can't
do.
Back in the early days of this blog, I talked about two things that no computing machine can do:
• ... | 4 | [
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combinatorics and coins
If you toss 1000 fair coins 10 times each what is the probability that *some* coin will get 10 heads?
The use of *some* coin getting 10 heads suggests that you are interested in the probability that at least one coin gets ten heads. If we let N=number of coins getting 10 heads, then Pr(N>=1)=1-... | 4 | [
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... | 23,847 | 23847 | |
area between the curves
September 20th 2010, 03:32 AM #1
Junior Member
Joined
Jun 2010
Posts
35
area between the curves
so I have a question here, in a line of questions, where i am supposed to figure out of a) i need to integrate with respect to x or y, and b)find the area of the region.
the proble... | 4 | [
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-0.01... | 23,848 | 23848 | |
quick differentiation question about sin^2(x)
June 24th 2010, 08:04 AM
Red
quick differentiation question about sin^2(x)
Ignorant question here, but I was looking at this example i have, needing to take the derivative:
f'(x) = sin^2(x) + cos(x)
= 2sin(x)*d/dx(sin x) - sin(x)
= 2sin(x)*cos(x) - sin(x... | 4 | [
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0.0252... | 23,849 | 23849 | |
Ellipse Word Problem
Register to reply
by sportsguy3675
Tags: ellipse, word
P: 45 Having trouble with this problem.
"The mean distance from the sun to Mars is 141.7 million miles. If the eccentricity... | 4 | [
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Is my book wrong?
June 2nd 2008, 07:24 PM #1
Newbie
Joined
Feb 2008
Posts
11
Is my book wrong?
This simplification came directly from my book. I think it is wrong, but I may just not understand it fully. Here it is:
$T'(t) = \\-4t(2t^2 + 1)^-2 <2t,2t^2,1> +\\ (2t^2 +1)^-1 <2,4t,0> \\ = (2t^2 + 1)^-2... | 4 | [
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0.... | 23,851 | 23851 | |
The Sieve of Eratosthenes and F# - Scott Seely - Devlicio.us - Just the Tasty Bits
There is a problem on the Euler project, www.projecteuler.net, which asks to find the sum of all values under a given number. Problems on the Euler project have a range of solutions, where at least
one solution has a runtime of under 1 m... | 4 | [
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0.00836181640625,... | 23,852 | 23852 | |
Intersections and Unions
October 31st 2010, 08:57 PM #1
Intersections and Unions
For events A and B we have
P(A) =0.3 P(B) = 0.8 P(A∪B) = 0.9
a) Find P(A|B) P(A'∩B) P(B'∪A').
b) Are A and B independent? Why?
Any help would be appreciated.
Here is my response that i tried... Am not sure if it... | 4 | [
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0.07275390625,
-0.08349609375,
-... | 23,853 | 23853 | |
finite difference method, coupled wave equations, chickens & eggs
November 4th 2010, 10:54 PM #1
Newbie
Joined
Nov 2010
Posts
2
I'm reading a book (Numerical Techniques in Electromagnetics by Sadiku) & just finished the section on finite difference methods. As what I thought would be an easy exercise, I t... | 4 | [
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0.0194091796875,
-0.1123046... | 23,854 | 23854 | |
Patent US5614829 - State-of-charge measuring method using multilevel peukert's equation
This application is a Continuation-in-Part of U.S. Ser. No. 08/366,719, filed Dec. 30, 1994, abandoned.
BACKGROUND OF THE INVENTION
The present invention relates to a state-of-charge measuring method, and more particularly, to a s... | 4 | [
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0.033447265625,
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-0.002700... | 23,855 | 23855 | |
An FPGA Chaos-Based PWM Technique Combined with Simple Passive Filter for Effective EMI Spectral Peak Reduction in DC-DC Converter
Advances in Power Electronics
Volume 2014 (2014), Article ID 383089, 11 pages
http://dx.doi.org/10.1155/2014/383089
Research Article
An FPGA Chaos-Based PWM Technique Combined with Simple... | 4 | [
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0.050292968... | 23,856 | 23856 | |
Patent US20090028458 - Scaling filter for video sharpening
BACKGROUND
1. Field
The present disclosure relates generally to the field of video processing and, more specifically, to techniques for integrating scaling and filtering in a standalone module.
2. Background
The visual appearance of a video signal may be si... | 4 | [
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... | 23,857 | 23857 | |
Finding the height of an object without going off campus
January 7th 2009, 07:03 PM #1
Newbie
Joined
Dec 2008
Posts
17
Finding the height of an object without going off campus
Hi everyone, a friend of mine recently explained to me this problem and I could not help, so I was wondering if someone here coul... | 4 | [
-0.000431060791015625,
0.09716796875,
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0.... | 23,858 | 23858 | |
Elementary # Theory
October 2nd 2008, 03:39 AM #1
Junior Member
Joined
Sep 2008
Posts
39
Hi guys, help me out with these, please!
1. if p is a prime satisfying n<p<2n, show that
2n(2n-1).....(n+1) / n(n-1)(n-2).....1 = 0(mod p)
2. If gcd(a, 35)=1, show that a^12 = 1(mod 35)
3. If p and ... | 5 | [
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Comp. Physics: Finite time Carnot cycle
Ok, I'm stuck again.
The book was useful for grasping the basic ideas.
I found how I could initialize the system. And understood the idea from appendix B.3 (box-muller transform).
However I believe I have to find something similar for collisions with the thermalising wall.
The ... | 4 | [
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Primes and Factorial problem.
October 31st 2010, 03:13 PM #1
Junior Member
Joined
Sep 2010
Posts
54
Primes and Factorial problem.
Let k be a positive integer and let m = 4k + 3.
a Show that the even numbers 2k +2, 2k +4, . . . , 4k, 4k +2 are congruent
modulo m to the negatives of the odd numbers... | 5 | [
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... | 23,861 | 23861 | |
CPT (M?) symmetries in Kerr-Newman metric
michael879
The "dt" coordinate I've been using is actually [itex]\bar{dt} = dt - \dfrac{2Mr}{r^2-2Mr+a^2}dr[/itex]
For the Kerr-Schild form of the metric, yes, the "time" coordinate is not the same as the "t" coordinate in Boyer-Lindquist coordinates. See below for more dis... | 4 | [
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... | 23,862 | 23862 | |
Basic algebra
August 2nd 2006, 01:37 PM #1
Junior Member
Joined
Jul 2006
Posts
28
1. A triangle has three sides 3x+7, 4x-9 and 5x-6. Find the expression that represents its perimeter.
2. The quotient when 3 more than a number is divided by 3 less than that same number.
3. 6x^2y^3+9x^2y^3
... | 4 | [
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... | 23,863 | 23863 | |
Determination of Pavement Rehabilitation Activities through a Permutation Algorithm
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 252808, 5 pages
http://dx.doi.org/10.1155/2013/252808
Research Article
Determination of Pavement Rehabilitation Activities through a Permutation Algorithm
^1Road Managemen... | 4 | [
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0.0961... | 23,864 | 23864 | |
Significance Test and Genome Selection in Bayesian Shrinkage Analysis
International Journal of Plant Genomics
Volume 2010 (2010), Article ID 893206, 11 pages
http://dx.doi.org/10.1155/2010/893206
Research Article
Significance Test and Genome Selection in Bayesian Shrinkage Analysis
^1Department of Statistics, Univer... | 4 | [
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help plz
March 26th 2007, 08:52 AM
JayJay1206
help plz
May someone help me solve this problem.
In a circle whose diameter is 20 inches, a chord is 6 inches from the center. What is the length of the chord?
I do not understand this problem.
Thank you for the help.
March 26th 2007, 10:27 AM
earbot... | 4 | [
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0.0205078... | 23,866 | 23866 | |
finding extrema using taylor series
How do I find the extrema using Taylor Series?? I am so used to find extrema just by finding the first derivative (make it =0) and then finding the second derivative and then just use the formula
f_xx.f_yy - f_xy and just look at the sign but this time I need to use taylor ex... | 5 | [
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0.040771484375,
0.0732421875,
-0.00506591796875,
-0.125,
-0.0166... | 23,867 | 23867 | |
Related Rates Questions
March 24th 2008, 12:38 AM #1
Junior Member
Joined
Mar 2008
Posts
67
A spherical ballon is being inflated at a rate of 3 pi m^3/min. Twelve minutes after inflation first begins, what is the rate of increase of the diameter?
i solved for dr/dt and then adjuster for diameter, but... | 5 | [
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0.06005859375,
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-0.006195068359375,
0... | 23,868 | 23868 | |
[SOLVED] Finding the Sum of this Series
April 23rd 2009, 12:17 PM #1
Member
Joined
Oct 2008
Posts
242
[SOLVED] Finding the Sum of this Series
I've attached the problem I'm working on. I know how to do geometric series problems, but don't know how to attack this type of infinite series, and can't really m... | 5 | [
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0.058349609375,
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-0.012939453125,
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0.0517578125,
-0.060... | 23,869 | 23869 | |
E
Experiment: Vector Addition by the Numerical Method
SUBJECT: Mathematics
TOPIC: Vector Addition
DESCRIPTION: A set of problems dealing with vector addition.
CONTRIBUTED BY: Carol Hodanbosi
EDITED BY: Jonathan G. Fairman - August 1996
Purpose:
A vector is a quantity that has both magnitude, or size, and direction... | 4 | [
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-0.025634765625... | 23,870 | 23870 | |
Volume of a solid
May 15th 2011, 08:55 PM #1
Member
Joined
Nov 2008
Posts
76
Volume of a solid
My friend and I ran into another problem that we were not able to solve. If anyone can gives us a hint, we'd really appreciate it.
A solid is generated by rotating the curve $y=f(x)$ where $0\leqslant x \l... | 5 | [
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-0.004669189453125,... | 23,871 | 23871 | |
Patent US5557637 - For processing an input signal for transmission as an output signal
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to communication systems. More specifically, the present invention relates to a novel technique for efficient processing of a large number of trial... | 4 | [
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0.01458740234375,
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-0.0947265625,
-0.001251220703125,
-0.02001953125,
-0.02734375... | 23,872 | 23872 | |
2007.igem.org
Dry to Wet
From 2007.igem.org
Mass-Action Reaction Modelling
There are many advantages of modeling a biological system in differential equations. Predictions can be made for experiments before they are carried out in the wetlab which can prove to be very
useful.
The simplest reaction which is shown i... | 4 | [
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-0.0299072265625,
0.... | 23,873 | 23873 | |
Complicated Integration
December 2nd 2007, 02:38 AM #1
Newbie
Joined
Dec 2007
Posts
6
Complicated Integration
Is there anybody here who know hows to solve any of the problems below? I've tried some methods but none of then worked.
$<br /> \int \frac{cos(x)}{x^2+a^2}\,dx<br />$
$<br /> \int \fra... | 5 | [
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-0.0177001953125,
0.031005859375,
0.000312805175... | 23,874 | 23874 | |
quotient groups
November 23rd 2012, 05:43 AM
amyw
quotient groups
If I write G/H, I say G mod H and that means all the left (or right) cosets of H and G? Are quotient groups by definition, normal?
November 23rd 2012, 07:14 AM
Deveno
Re: quotient groups
it means all the left (or right) cosets of H IN G, f... | 4 | [
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-0.033447265... | 23,875 | 23875 | |
Patent US6993095 - Phase-locked loop initialization via curve-fitting
BACKGROUND OF THE INVENTION
Coherent demodulation of digitally modulated signals requires a receiver to be synchronized to the carrier frequency offset and carrier phase offset of the received signal relative to the transmitted
signal. If left uncor... | 4 | [
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-0.044189453125,
-0.05444335937... | 23,876 | 23876 | |
solving differential equation using substution
March 5th 2010, 04:02 AM #1
solving differential equation using substution
DY/DX = (7X - 3Y)^3
I used substitution Z = (7X -3Y) Then seperate the variables but i cannot do the integration of 1/(Z^3 - 7) Unless i am supposed to use another substitution??
Tha... | 5 | [
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-0.01483154296875,
-0.07177734375,
0.... | 23,877 | 23877 | |
Plasma Physics
Any help on the following theoretical plasma problem would be greatly appreciated!
The diffusion eqn for a one-dimensional plasma, varying in the x direction only is
D d^2n/dx^2 =-Q
Letting Q=nv[i] we can show the diffusion eqn has a solution of the form
n=Asin[sqrt(v[i]/D)x] + Bcos[sqrt(v[i]/D)x]
S... | 4 | [
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0.061279296875,
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0.031982421875,
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0.0654296875,
0.05224609375,
-0.1240234375,
0.05078125,
-0.078125,
-0.011169... | 23,878 | 23878 | |
Real Analysis/Limits and Continuity Exercises/Hints
←Exponential Function Real Analysis Differentiation→
Exercises
These problems are on the difficult or, to put it differently if not mildly, non-standard type. Try to work the problems without the hints because most times, you might have a diff... | 4 | [
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-0.048095703125,
-0.0006256103515625,
0.0289306640625,
... | 23,879 | 23879 | |
Why is 3 pion decay of eta (η) strong forbidden?
From
G-parity - Wikipedia
In general, P(G) = P(C)*(-1)^I
For fermion-antifermion systems, P(G) = (-1)^(L+S+I)
For boson-antiboson systems, P(G) = (-1)^(L+I)
To calculate exp(-i*pi*I2), use
Wigner D-matrix - Wikipedia
for rotation matrices between quantum-mechanica... | 4 | [
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0.0198974609375,
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-0.0732421875,
0.062255859375,
0.049072265625,
0.038330078125,
0.0273437... | 23,880 | 23880 | |
Figuring out the Trapezoidal rule
January 15th 2013, 07:23 PM #1
Member
Joined
Oct 2011
Posts
153
Figuring out the Trapezoidal rule
Hi, I think I'm average on the trapezoidal rule right now, but there is one thing I'm a bit confused about.
Ok so I know the trapezoidal rule is [a]∫^bf(x)dx=(b-a)/2n [f... | 4 | [
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-0.0260009765625,
-0.01318359375,
0.0673828125,
-0.08642578125,
-0.05859... | 23,881 | 23881 | |
logarithmic equation
\displaystyle \begin{align*} \frac{1}{2}\log{(5 + 7x)} - \log{9} + \log{2} &= 1 - \frac{1}{2}\log{(7 + 2x)} \\ \frac{1}{2}\log{(5 + 7x)} + \frac{1}{2}\log{(7 + 2x)} + \log{\frac{2}{9}} &= 1\\ \frac
{1}{2}\log{\left[ (5 + 7x)(7 + 2x) \right]} + \log{\frac{2}{9}} &= 1 \\ \log{\left\{ \left[ (5 + 7x)(... | 4 | [
-0.0003528594970703125,
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Patent US6898308 - Method of color quantization in color images
CROSS-REFERENCE TO RELATED APPLICATION(S)
This application is a divisional application of U.S. patent application Ser. No. 09/491,551, filed Jan. 26, 2000 now U.S. Pat. No. 6,678,406, the disclosure of which is incorporated by reference
herein.
FIELD OF ... | 4 | [
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Integration Problem Has Me Stumped
July 4th 2010, 12:35 AM #1
Newbie
Joined
Oct 2006
Posts
14
Integration Problem Has Me Stumped
One question on my assignment has me stumped. I've tried a number of different methods, but every time, I either get stuck somewhere, or the equation quickly gets ridiculously ... | 5 | [
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Physics Forums - View Single Post - Conditional & uncoditional MSE (in MMSE estimation)
SW VandeCarr
I think this article may help.
http://cnx.org/content/m11267/latest/
I take it that P(Z) is your unconditional probability density and p(Z|x) is your likelihood function. Then taking the joint density p(x)p(Z|x) y... | 4 | [
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FTOcalculus simplification problem
d/dx integral (f^-1 (t) dt) the boundaries are 0 to f(x).
What makes so angry these problem do not mention intervals of a bijection map, continuity, definess, differenciability,.... Makes me so angry. I JUST CANNOT DO PROBLEMS LIKE THIS. So I am going to
assume you have a differencia... | 5 | [
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What Is Your Corporate Cost of Capital?
What Is Your Company’s Cost of Capital?
In completing various advisory assignments for real estate and corporate clients, I find it amazing that many companies do not know what their cost of capital is. Cost of capital is the cost to the
company of various components of its capi... | 5 | [
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Patent US6477471 - Product defect predictive engine
This application claims priority under 35 USC §119(e)(1) of provisional application No. 60/008,116, filed Oct. 30, 1995.
NOTICE
Copyright© 1994 Texas Instruments Incorporated
A portion of the disclosure of this patent document contains material which is subject to ... | 4 | [
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Trig Word Prob- how wide is the fire?
November 13th 2008, 07:15 PM
jstrickland
Trig Word Prob- how wide is the fire?
hey just wondering if anyone can figure out the following problem...
A helicopter is dropping water on a forest fire from a height of 300 feet. If one side of the fire makes an angle depressi... | 4 | [
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How long to freeze standing water in steel pipe
I don't think that can use the lumped capacitance method when dealing with a phase change so I've tried another approach... Is this the correct method?
I calculated the surface heat transfer coefficient (h) by [tex]h=\frac{N_u * k_f}{D_o}[/tex], where [tex]k_f[/tex]= the... | 5 | [
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Multiply
Adding, Subtracting Functions
As well as Multiplying and Dividing Them!
Operations with Functions Worksheet (25 question pdf with answer key on this page's topic)
Functions Home Multiply and Dividing Functions | Functions in ... | 4 | [
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Patent US5097508 - Digital speech coder having improved long term lag parameter determination
BACKGROUND OF THE INVENTION
The present invention generally relates to a digital speech encoder having a long term filter in which delay (lag) is a parameter. This invention is particularly, but not exclusively, suited for us... | 4 | [
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Probability to get an orphan disease
December 17th 2012, 02:38 PM
fixisnotusedyet
Probability to get an orphan disease
Hello all,
p : Probability of population with a specific orphan disease (p=10^-7)
q : Probability to get one allele called L1 on his X chromosome (q=0.01)
The only 3 known cases of... | 5 | [
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An equation with 6 roots
September 27th 2006, 08:53 AM #1
An equation with 6 roots
Hi, how do i do when i want to solve an equation with 6 roots.
I have prevously solved equations with 4 roots Z^n = -i.
But this time im stuck. The equation is looking like this: Z^6=-64
A couple of ways. This is how... | 5 | [
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Patent US20040139136 - Method for securing a computer installation involving a cryptographic algorithm using boolean operations and arithmetic operations and the corresponding embedded system
[0001] Paul Kocher et al. introduced in 1998 [5] and published in 1999 the concept of “Differential Power Analysis,” also known ... | 4 | [
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Prove this limit
If a function f is continuous at x0, then its limit as x -> x0 is f(x0).
Using what "basis"? If you know about "continuous functions" and in particular that all polynomials are continous for all values of x then it is sufficient to say, as emakarov does, that the limit is
$(1)^2-2(1)+ 4= 1- 2+ 4= 3$. ... | 5 | [
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Easy? algebra problem
y^2 - 2xy - 16 = 0 y = ?? Can't seem to express y in terms of x
y^2 - 2xy - 16 = y^2 - 2xy + (x^2 - x^2) - 16 = (y^2 - 2xy + x^2) - x^2 - 16 = (y-x)^2 - x^2 - 16 = 0 Adding x^2+16 to both sides, you get: (y-x)^2 = x^2 + 16 Taking the square root of both sides,
you get: y-x = +/- SQRT(x^2 + 16) Ad... | 4 | [
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Probability
March 7th 2008, 07:19 PM #1
Junior Member
Joined
Feb 2008
Posts
63
Probability
4) There are 1000 tickets for a lottery. The lottery take s place every week, and every week prizes are given away: one for the first price, which is worth $10,000 and 3 second prizes of $2000
each one. You hav... | 4 | [
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... | 23,898 | 23898 | |
How can I determine this is a parabola? (by finding its standard form)
June 7th 2011, 03:23 PM #1
Junior Member
Joined
Jan 2011
Posts
28
How can I determine this is a parabola? (by finding its standard form)
The equation is:
3x^2-20y^2=80y+48
I know it is a hyperbola once I check with Wolfram A... | 4 | [
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