content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Homework Help
Posted by Mattie on Monday, November 14, 2011 at 8:16pm.
Help please-I'm totally lost-
How would I simplify (2x^5 y^4 z^3/x^-1 y^5 z^5)^-1
Thank you for any help you can give me-I'm so stuck for my homeworkk tonight. I know I can bring up the negatives to top and negative to bottom to make them positiv... | 4 | [
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0.040771484375,
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0.1533203125,
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0.04345703... | 29,900 | 29900 | |
Modelling and Performance Analysis of a Network of Chemical Sensors with Dynamic Collaboration
International Journal of Distributed Sensor Networks
Volume 2012 (2012), Article ID 656231, 9 pages
http://dx.doi.org/10.1155/2012/656231
Research Article
Modelling and Performance Analysis of a Network of Chemical Sensors ... | 4 | [
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0.055419921875,
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-... | 29,901 | 29901 | |
Using Quotient of Prime Numbers to Approximation Reals
up vote 10 down vote favorite
3
We know a positive rational number can be uniquely written as $m/n$ where $m$ and $n$ are coprime positive integers. Particularly, we can pick out those numbers with $m$ and $n$ both prime.
Question 1: Is the collection of all such... | 5 | [
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0.01879... | 29,902 | 29902 | |
QM - Part 1 - Eigenvalues of the Hermitian Operator A are real
March 12th 2011, 03:18 AM #1
QM - Part 1 - Eigenvalues of the Hermitian Operator A are real
Hi FOlks,
Studying this theorem 'Eigenvalues of the Hermitian Operator A are real' from sakurai's Modern QM's
$\hat A | a' \rangle = a'| a' \rangle$
... | 5 | [
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0.00... | 29,903 | 29903 | |
Bifurcations and Stability of Nondegenerated Homoclinic Loops for Higher Dimensional Systems
Computational and Mathematical Methods in Medicine
Volume 2013 (2013), Article ID 582820, 9 pages
http://dx.doi.org/10.1155/2013/582820
Research Article
Bifurcations and Stability of Nondegenerated Homoclinic Loops for Higher... | 4 | [
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Need help with related rates
December 6th 2006, 08:03 PM #1
Newbie
Joined
Dec 2006
Posts
10
Need help with related rates
Im trying to understand related rates here and im getting stuck at this word problem.
It says if V is the volume of a sphere with radius r, and the volume of the sphere decreases ... | 4 | [
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Simple Trigonometry help, and logs
April 20th 2008, 03:25 AM #1
Junior Member
Joined
Feb 2008
Posts
64
Simple Trigonometry help, and logs
How would i go about working out:
1. cos(x) + sin(x) = (1/3), -pi < x < pi
2. ln(y+1) - ln(y) = 0.85
Hello,
For the first one, I'd make a substitut... | 4 | [
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Value of the constant
June 29th 2006, 09:23 AM #1
Member
Joined
Jun 2006
Posts
165
Express the following statement as a formula with the value of the constant of proportionality determined with the given conditions: w variers directly as x and inversely as the square of y. If x
=15 and y=5, then w=36.... | 4 | [
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... | 29,907 | 29907 | |
Need help and confirmation about some notational symbols
April 26th 2012, 09:26 AM #1
Junior Member
Joined
Apr 2011
From
Somwhere in cyberspace.
Posts
68
Thanks
2
Need help and confirmation about some notational symbols
What does $Z[X]/(x^n-1)$ mean?
Z[X] must be the ring of all polynomials ... | 5 | [
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Polynomials in Control Theory Parametrized by Their Roots
International Journal of Mathematics and Mathematical Sciences
Volume 2012 (2012), Article ID 595076, 19 pages
http://dx.doi.org/10.1155/2012/595076
Research Article
Polynomials in Control Theory Parametrized by Their Roots
^1Departamento de Matemáticas, Divi... | 4 | [
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A problem in discrete geometry
February 13th 2010, 11:18 AM
NonCommAlg
A problem in discrete geometry
[ $\star$] Let $V$ be a finite dimensional vector space over some field $F$ and $\dim_F V=n.$ Let $\mathcal{A}$ be a finite set of the subspaces of $V$ and suppose that for any $\emptyset eq \
mathcal{B} \su... | 5 | [
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how to show if these are uniformly continuous
The first one is not uniformly continous( I don't think) Here is number two Since g(x) is differentable $g'(x)=-4x^3e^{-x^4}$ and the derivative is bounded on all of $\mathbb{R}$. so $f'(x) < M$ for
some $M \in \mathbb{R}$ let $\epsilon > 0$ set $\delta=\frac{\epsilon}{M}$ ... | 5 | [
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ith
Robust regression with Particle Swarm Optimisation in R
Author
Keywords
Least Median of Squares, Least Trimmed Squares, Particle Swarm Optimisation, R, robust regression
Review Status
Unreviewed
1 Introduction
This tutorial explains how to implement a Particle Swarm (PS) optimisation for robust regression as... | 4 | [
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p=2^k+1 and (a/p)=-1 imply a is primitive modulo p
July 11th 2010, 07:16 AM
rualin
p=2^k+1 and (a/p)=-1 imply a is primitive modulo p
Hello! I've been working on this little proof but I never got it. I'm pretty sure it's real simple but I'm having trouble and I'd appreciate it if someone could help me.
If ... | 4 | [
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lim (t->0) (e^t-1+t)/t^2
March 15th 2013, 08:51 PM #1
Newbie
Joined
Mar 2013
From
Brisbane
Posts
23
lim (t->0) (e^t-1+t)/t^2
Hi,
I have this question:
lim (e^t-1+t)/t^2
t->0
so I have used L' Hopital's Rule because when you sub in 0 you get "0/0" and arrived at
lim e^t+1/2t
... | 4 | [
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Galois group of f(x)=x^4-5x^2+6
April 28th 2008, 09:38 AM #1
Junior Member
Joined
May 2007
Posts
33
Galois group of f(x)=x^4-5x^2+6
I am trying to figure out the logic behind this worked out example in a textbook.
The definition given of the Galois group, Gal(F/K) is the set of all automorphisms of ... | 4 | [
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Details
Texas Instruments TI-57 LCD
Datasheet legend
Ab/c: Fractions calculation
AC: Alternating current
BaseN: Number base calculations
Card: Magnetic card storage
... | 4 | [
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Boundary Value Problems with Integral Gluing Conditions for Fractional-Order Mixed-Type Equation
International Journal of Differential Equations
Volume 2011 (2011), Article ID 268465, 10 pages
http://dx.doi.org/10.1155/2011/268465
Research Article
Boundary Value Problems with Integral Gluing Conditions for Fractional... | 5 | [
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Math question
are you the same mr. green that posted this? Because you certainly have asked a lot of questions
You want an interval such that $\left | f(x) - 6 \right | \leq 2$. So you want $\left | x^2 - 2x - 3 \right | \leq 2$ So $x^2 - 2x - 3 \leq 2$ and $x^2 - 2x - 3 \geq -2$ For the first inequality
solve: $x^2 -... | 4 | [
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Relations
May 13th 2007, 06:40 PM #1
Junior Member
Joined
Mar 2007
Posts
34
Relations
Determine whether each binary relation is reflexive, symmetric, antisemmetric and/or transitive. Justify each one.
1. The relation R on the natural numbers where aRb means that a has the same number of digits as b.... | 4 | [
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Or Just Use Inequalities!
last week’s title. It will make much more sense thereafter. This post is a continuation of last week’s post where we discussed number plugging. Today, as per students’ request, we will look at the
inequalities approach to the same official question. You will need to go through our inequalities... | 4 | [
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-0.048095... | 29,920 | 29920 | |
[SOLVED] help please
October 25th 2008, 06:27 AM #1
Newbie
Joined
Oct 2008
Posts
9
There are two stations from A to B and two stations from B to C. Suppose that each station is closed with probability p and that the state of each station is independent of the others. What
condition on p ensures that t... | 5 | [
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Sequences
March 10th 2009, 06:04 PM
Chief65
Sequences
Need help proving....
Suppose that (an), (bn), and (cn) are sequences such that an≤ bn ≤ cn for all n ɛ N and such that lim an = lim cn = b. Prove that lim bn = b.
March 10th 2009, 09:14 PM
ThePerfectHacker
Quote:
You know that $a_n \leq b_n ... | 4 | [
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Finding present value
October 26th 2008, 07:42 AM #1
Junior Member
Joined
Oct 2008
Posts
68
Finding present value
A $50 U.S. Savings Bond paying 6.22% compounded monthly matures in 11 years 2 months. What is the present value of the bond?
the formula for the present value, $P$, is given by
$P =... | 4 | [
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SQL Server Forums - Distance between zip codes
Author Topic
slacker Posted - 09/22/2004 : 03:14:42
Posting Yak Master Im writing an application that needs to fi... | 5 | [
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A Graphical Method for Solving Interval Matrix Games
Abstract and Applied Analysis
Volume 2011 (2011), Article ID 260490, 17 pages
http://dx.doi.org/10.1155/2011/260490
Research Article
A Graphical Method for Solving Interval Matrix Games
Department of Mathematics, Faculty of Science, Anadolu University, 26470 Eskis... | 5 | [
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0.00180053710... | 29,925 | 29925 | |
Homework Help
Posted by Anonymous on Thursday, March 1, 2012 at 11:37pm.
Given y^4 -x^4=16 find and simplify d2y/dx2 using implicit differentiation.
I got the first derivative which was x^3/y^3 and no im am stuck on using implicit differentiation for the second derivative part
• calculus - Steve, Friday, March 2, ... | 5 | [
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Homework Help 3
November 11th 2008, 02:17 PM #1
Junior Member
Joined
Oct 2008
Posts
57
Homework Help 3
1.The stem and leaf plot shows the score of 20 students. What percent of the students scored less then 75%? (the value 6|2 represents 62%)
6|2 5
7|0 2 3 4 5
8|1 1 2 3 3 4 8
9|2 4 4 6 6 ... | 4 | [
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0.0634765625,
-0.10986328125,
0.057373046875,
0.0206298828125,
-0.0189208984375,
0.115234375,
-0.0242919921875,
-0.0242919921875... | 29,927 | 29927 | |
Exponential Decay
February 18th 2009, 08:08 PM
realintegerz
Exponential Decay
A substance undergoes radioactive decay. If you start with 3 grams, after 4 seconds you will have 1 gram left.
a) How long will it take to have 2 grams left?
b) How much will you have after 6 seconds?
c) What is the half-l... | 4 | [
-0.04345703125,
-0.036865234375,
-0.0296630859375,
-0.01123046875,
0.0205078125,
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0.041259765625,
0.0634765625,
0.01043701171875,
-0.08154296875,
-0.0368652... | 29,928 | 29928 | |
Parallel Vectors functions
March 5th 2007, 02:49 AM
Ideasman
Parallel Vectors functions
Hello,
I have to find every value t such that the vector r'(t) is parallel to the yz plane, given that r(t) = <cos(t^2), e^(sqrt(t)), t>
Well, I know how to find the derivative of that, but then don't know what to d... | 5 | [
-0.08544921875,
0.0087890625,
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-0.11474609375,
-0.06396484375... | 29,929 | 29929 | |
Why is it that you can't add/subtract polynomial exponents, but you can otherwise?
August 8th 2012, 08:37 AM #1
Newbie
Joined
Aug 2012
From
Missouri City, Texas
Posts
23
Why is it that you can't add/subtract polynomial exponents, but you can otherwise?
For example, i'm not suppose to add 4x^3+6x^2. W... | 4 | [
0.0036773681640625,
-0.0537109375,
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-0.... | 29,930 | 29930 | |
Absolute-Value Inequalities
There are many opportunities for mistakes with absolute-value inequalities, so let's cover this topic slowly and look at some helpful pictures along the way. When we're done, I hope you will have a
good picture in your head of what is going on, so you won't make some of the more common erro... | 4 | [
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-0.0966796875,... | 29,931 | 29931 | |
the encyclopedic entry of Symmetry_of_second_derivatives
In
mathematics
, the
symmetry of second derivatives
refers to the possibility of interchanging the order of taking
partial derivatives
of a function
f(x[1], x[2], ..., x[n])
of n variables. If the partial derivative with respect to x[i] is denoted wit... | 4 | [
-0.0223388671875,
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ra
Jun 20, 2012
We’ve tackled drawing curves, and finding their quadratic and cubic roots, as well as handy applications for using quadratic roots within games. Now, as promised, we’ll look at applications for
finding cubic roots, as well as curves’ gradients and normals, like making objects bounce off curved surfaces... | 5 | [
0.01422119140625,
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0.025390625,
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0.0703125,
-0.0277099609375,
0.08740234375,
-0.0157470703125,
0.07568... | 29,933 | 29933 | |
Help with math problem
October 18th 2009, 08:46 AM
bhaskar2
Help with math problem
ok so the problem is this :
Let f(x) = (2x+4)^4
Simplify ->
f(x)-f(a)
(x-a)
Stated in words: f of x minus f of a, all divided by x minus a.
so can anyone help me with this ASAP.
October 18th 2009, 09:1... | 4 | [
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0.052734375,
-0.00201416015625,
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gcd proofs
January 19th 2009, 01:35 PM #1
Newbie
Joined
Jan 2009
Posts
8
gcd proofs
Edited to add:
Prove that for every n, gcd(n+1, n^2-n+1) is either 1 or 3.
I'm having a lot of difficulty with some of these proofs. I'm not quite sure where to begin...
First, If (a,b)=d, then prove (a/d,... | 4 | [
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0... | 29,935 | 29935 | |
Fast SHM question
Hi !Note that $\sin(4t)+\sqrt{3}\cos(4t)=2\left( \frac{1}{2}\sin(4t)+\frac{\sqrt{3}}{2}\cos(4t)\rig ht)<br /> =2\left( \cos\frac{\pi}{3}\sin(4t)+\sin\frac{\pi}{3}\cos(4t )\right)$. As $\sin a \cos b+
\sin b \cos a =\sin(a+b)$, we get that $\sin(4t)+\sqrt{3}\cos(4t)=2\sin\left( 4t+\frac{\pi}{3}\right)$... | 5 | [
-0.0380859375,
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0... | 29,936 | 29936 | |
Problem 26
June 10th 2007, 07:56 PM #1
Global Moderator
Joined
Nov 2005
From
New York City
Posts
10,616
Thanks
9
Problem 26
This one is not so bad.
1)Let $f(x)$ be an $n$-th degree* polynomial function such that $f(x)\geq 0$. Define the function $g(x)$ as:
$g(x) = f(x) + f'(x) + f''(x) +... | 5 | [
-0.00194549560546875,
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-0.... | 29,937 | 29937 | |
Chapter 10. Parallel-Split Shadow Maps on Programmable GPUs
GPU Gems 3
GPU Gems 3
is now available for free online!
Please visit our
Recent Documents
page to see all the latest whitepapers and conference presentations that can help you with your projects.
You can also subscribe to our
Developer News Feed
to get... | 4 | [
-0.08447265625,
-0.007049560546875,
0.0113525390625,
-0.028564453125,
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0.07421875,
0.052001953125,
... | 29,938 | 29938 | |
Battery capacity - Peukert stuff - SailNet Community
... | 4 | [
-0.0244140625,
0.109375,
-0.051513671875,
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-0.0... | 29,939 | 29939 | |
Homework Help
Posted by Jenn on Tuesday, March 19, 2013 at 1:24pm.
Determine the quadratic function of f whose vertex is (2,-1) and passes through (3,1)
f(x)=
• Algebra - Steve, Tuesday, March 19, 2013 at 3:13pm
from the vertex, we know that
y = a(x-2)^2 - 1
since y(3) = 1,
1 = a(3-2)^2-1
1 =... | 4 | [
-0.026123046875,
-0.023193359375,
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... | 29,940 | 29940 | |
How do you prove that there is no perfect square of the form 4k+3?
August 1st 2012, 12:27 AM
omegatidus
How do you prove that there is no perfect square of the form 4k+3?
Im stuck on this homework problem that im not sure if i am doing right and it is due tommorow:
Prove that there is no perfect square of th... | 4 | [
0.021728515625,
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-0.021240234375,
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0.035888671875,
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-0.00360107421875,... | 29,941 | 29941 | |
Intersection of 2 curves at right angles
February 18th 2010, 07:24 AM
ShaDan86
Intersection of 2 curves at right angles
Hey guys, I have a question that I am stuck atm and need some help with.
"For what values of the nonzero constant k do the curves y=kx^2 and y=k(x-2)^2 intersect at right angles?"
I s... | 4 | [
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-0.022216796875,
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-0.05029296875,
-0... | 29,942 | 29942 | |
Volume of a Solid
October 4th 2008, 12:57 PM #1
Member
Joined
Aug 2008
Posts
225
Volume of a Solid
I was hoping someone could double-check this for me:
Find the volume of a solid obtained by rotating the region bounded by y = x^2 + 1 , y = 9 - x ^2, about y = -1.
(Sorry I don't know how to use ... | 5 | [
0.00518798828125,
0.01336669921875,
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-0.0... | 29,943 | 29943 | |
Please help derivation of Bessel Function
July 19th 2013, 04:25 PM #1
Junior Member
Joined
Jul 2013
From
Arizona
Posts
44
Thanks
2
Please help derivation of this integration
I am studying Bessel Function in my antenna theory book, it said:
$\pi j^n J_n(z)=\int_0^{\pi} \cos(n\phi)e^{+jz\cos\ph... | 5 | [
-0.06494140625,
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-0.004791259765625,
0.01043701171875,
... | 29,944 | 29944 | |
Investment average rate increase?
August 24th 2008, 04:39 PM #1
Junior Member
Joined
Nov 2007
Posts
57
Investment average rate increase?
An investment of $1000 increases 16% each year. Find the average rate at which the investment has grown over the first 5 years.
I have already found the amount aft... | 4 | [
0.0223388671875,
-0.0654296875,
0.00494384765625,
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0.033203125,
-0.0274658203125,
0.0830078125,
-0.044677734375,
-0.020996093... | 29,945 | 29945 | |
Equations in Polynomials: Problems and Solutions
Equations in Polynomials: Problems and Solutions
Probem 1
Find all polynomials \( P \) such that \( P(x)^2+P(\frac1x)^2= P(x^2)P(\frac1{x^2}) \).
By the introducing lemma there exists a polynomial \( Q \) such that \( P(x)=Q(x^2) \) or \( P(x)=xQ(x^2) \). In the for... | 5 | [
-0.015869140625,
0.07373046875,
0.06298828125,
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-0.03369140625,
0.04443359375,
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0.12060546875,
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0.06640625,
0.10009765625,
-0.015380859375,
0.0517578125,
-0.01507568359375,
0.01556396484... | 29,946 | 29946 | |
Partial derivative of (n+1) dimensional integral - Evans PDE
September 22nd 2012, 02:19 AM #1
Newbie
Joined
Sep 2012
From
Australia
Posts
6
Partial derivative of (n+1) dimensional integral - Evans PDE
Hi I'm just wondering what steps Evans takes in his PDE book on page 50.
He defines
$u(x,t... | 5 | [
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-0.1005859375,
-0.03344... | 29,947 | 29947 | |
Find all the sub groups of a given group
December 19th 2012, 03:55 AM #1
Newbie
Joined
Dec 2012
From
israel
Posts
1
Find all the sub groups of a given group
Can someone please explain to me step-by-step how to solve this problem:
How many sub-groups of order 9 does the group (Z[3)]X(Z[3])X(Z[9]) ... | 5 | [
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0.00714111328125,
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0.044189453125,
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0.0026397705078125,
0.0050048828125,
... | 29,948 | 29948 | |
Statistical Physics Attacks St. Petersburg: Paradox Resolved
In the history of statistics, economy and decision theory, the St. Petersburg paradox plays a key role. This lottery problem goes back a full three centuries to the mathematician Nicolas Bernoulli
who first formulated the problem in 1713. Twenty five years la... | 4 | [
-0.015869140625,
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0.056884765625,
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0.0164794921875,
-0.0361328125,
-0.048828125,
-0.0302734375,
-0.04736328125... | 29,949 | 29949 | |
Solving an algerbraic equation.
February 6th 2011, 06:50 PM #1
Newbie
Joined
Feb 2011
Posts
14
Solving an algerbraic equation.
Hi all.
I got this question from my example booklet, which has the question worked. However, im not quite sure how the problem is solved, and i cant follow how the exmaple bo... | 4 | [
-0.1337890625,
0.0732421875,
0.0390625,
-0.0228271484375,
-0.0299072265625,
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0.09423828125,
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0.044921875,
-0.038330078125,
-0.01385498046875,
-0.0751953125,
-0.01531982421875... | 29,950 | 29950 | |
Time-Consistent Strategies for a Multiperiod Mean-Variance Portfolio Selection Problem
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 841627, 13 pages
http://dx.doi.org/10.1155/2013/841627
Research Article
Time-Consistent Strategies for a Multiperiod Mean-Variance Portfolio Selection Problem
China Ins... | 4 | [
-0.035400390625,
0.0155029296875,
0.010009765625,
0.00799560546875,
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0.039794921875,
... | 29,951 | 29951 | |
Expectation value of the sum of two random variables
1. The problem statement, all variables and given/known data
The expectation value of the sum of two random variables is given as:
[tex] \langle x + y \rangle = \langle x \rangle + \langel y \rangle[/tex]
My textbook provides the following derivation of this relati... | 4 | [
-0.049560546875,
-0.034912109375,
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0.0159912109375,
0.005859375,
0.06005859375,
-0.0264892578125,
0... | 29,952 | 29952 | |
Related Rates
March 25th 2007, 07:53 PM
camherokid
Related Rates
The altitude of a triangle is increasing at a rate of 1cm/min while the area of the triangle is in creasing at a rate of 2cm^2/min. At what rate is the base of the triangle changing when the
altitude is 10cm and the area is 100cm^2.
March 25th... | 5 | [
-0.060546875,
0.07177734375,
-0.00494384765625,
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0.03564453125,
0.1318359375,
-0.054931640625,
0.029... | 29,953 | 29953 | |
Proving
October 21st 2009, 10:22 PM
pathurr19
Proving
I like proving but this one, I got stuck because of time pressure. It was the last question and I was hurrying since I only got 5 mins left. I didn't get to finish my solution so I may have
gotten a few points off it.
here it goes:
1/cos^2B = [c... | 4 | [
-0.109375,
0.078125,
0.004638671875,
0.00775146484375,
0.03466796875,
0.05859375,
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0.029296875,
0.032958984375,
-0.053955078125,
0.0238037109375,
-0.10791015625,
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0.03857421875,
0.01251220703125,
-0.00927734375,
-0.056884765625,
-0.02587890625,
-0.... | 29,954 | 29954 | |
Order of a Group with a Unique Subgroup
October 18th 2010, 03:06 PM #1
Member
Joined
Oct 2009
Posts
128
Order of a Group with a Unique Subgroup
Hello!
I have a problem I'm working on..
Given that a finite group G has exactly one nontrivial proper subgroup (call it H),
then we must prove
... | 5 | [
-0.041748046875,
0.0791015625,
0.1015625,
-0.0115966796875,
0.011962890625,
0.0081787109375,
0.050048828125,
-0.052490234375,
-0.017578125,
-0.04833984375,
0.021240234375,
0.02587890625,
0.05078125,
-0.08251953125,
0.005645751953125,
-0.0052490234375,
0.005828857421875,
-0.04125976... | 29,955 | 29955 | |
Finite-Time Stability of Neutral Fractional Time-Delay Systems via Generalized Gronwalls Inequality
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 610547, 4 pages
http://dx.doi.org/10.1155/2014/610547
Research Article
Finite-Time Stability of Neutral Fractional Time-Delay Systems via Generalized Gronwal... | 5 | [
-0.08203125,
0.005340576171875,
-0.024658203125,
-0.005950927734375,
0.06787109375,
0.02880859375,
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-0.01611328125,
0.040283203125,
0.01397705078125,
0.08251953125,
-0.0091552734375,
0.01104736328125,
-0.007659912109375,
-0.040771484375,
0.0211181640625,
0.02502441406... | 29,956 | 29956 | |
Difference Quotient, fifth power
December 5th 2009, 03:25 PM #1
Newbie
Joined
Dec 2009
Posts
6
Difference Quotient, fifth power
Hello, I have a question regarding difference quotients. I haven't been able to find a single example of a difference quotient to an exponent higher than 3, so I was hoping some... | 5 | [
-0.0400390625,
-0.0033721923828125,
0.051025390625,
0.0032501220703125,
0.035888671875,
-0.04248046875,
-0.0294189453125,
-0.00054931640625,
0.042724609375,
0.0240478515625,
0.064453125,
-0.06640625,
-0.009033203125,
0.0250244140625,
-0.001129150390625,
-0.01446533203125,
-0.04101562... | 29,957 | 29957 | |
quadratics and polynomials
December 8th 2008, 06:59 PM #1
quadratics and polynomials
What would be all the quadratic polynomials that are irreducible in $Z_{3}$[x]. Integers mod 3. How would you go about finding them. Similarly, how would you find them for $Z_{5}$[x].
Write out a complete list of polynomials... | 4 | [
-0.01385498046875,
-0.0196533203125,
-0.06982421875,
0.01019287109375,
0.0439453125,
0.0164794921875,
0.07470703125,
0.01068115234375,
-0.034912109375,
-0.08056640625,
-0.00927734375,
0.0167236328125,
0.0400390625,
-0.02197265625,
-0.034912109375,
-0.0247802734375,
0.0250244140625,
... | 29,958 | 29958 | |
Taylor’s Expansion for Composite Functions
The Scientific World Journal
Volume 2013 (2013), Article ID 536280, 7 pages
http://dx.doi.org/10.1155/2013/536280
Research Article
Taylor’s Expansion for Composite Functions
^1Nhatrang Educational College, 01 Nguyen Chanh Street, Nhatrang City, Vietnam
^2Department of Mathe... | 5 | [
-0.0400390625,
-0.0177001953125,
0.07421875,
0.02294921875,
0.0654296875,
-0.001312255859375,
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0.023193359375,
0.025634765625,
0.01263427734375,
0.050048828125,
0.04150390625,
0.0419921875,
-0.01019287109375,
0.007598876953125,
-0.050048828125,
-0.0019683837890625,
... | 29,959 | 29959 | |
Lightning Craps - RGT Online
Lightning Craps
31 May 2014
By
Donald Catlin
Lightning Craps
One of my readers, Robby Bonter, recently sent me the rules for a new game called Lightning Craps. In Robby’s own words “Lightning Craps was introduced to some visitors of the Turning Stone Casino
last August by a patron of t... | 4 | [
-0.046142578125,
0.0634765625,
-0.005035400390625,
-0.04248046875,
-0.03369140625,
0.016845703125,
0.059814453125,
-0.036865234375,
0.01385498046875,
-0.00921630859375,
-0.04541015625,
0.01190185546875,
-0.03564453125,
0.0224609375,
-0.046875,
0.01953125,
-0.045166015625,
0.0015335... | 29,960 | 29960 | |
Machine Learning Ex2 – Linear Regression
March 22, 2011
By ygc
Thanks to this post, I found OpenClassroom. In addition, thanks to Andrew Ng and his lectures, I took my first course in machine learning. These videos are quite easy to follow. Exercise 2 requires
implementing gradient descent algorithm to model data wi... | 5 | [
-0.07373046875,
-0.05078125,
0.0263671875,
-0.10009765625,
0.0947265625,
-0.006744384765625,
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-0.0419921875,
-0.08447265625,
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0.0390625,
0.03662109375,
0.000957489013671875,
-0.046630859375,
-0.049072265625,
0.07275390625,
-0.0390625,
-0.00120544433... | 29,961 | 29961 | |
maths problem
September 14th 2007, 03:06 AM #1
Newbie
Joined
Jul 2007
Posts
15
I HAVE NO IDEA HOW TO DELETE A DOUBLE POST
SORRY
this is a famous problem, but i forgot who made it up
there was a rich man, writing his will. he didnt have any children yet, but wanted each child to have the fo... | 4 | [
-0.07421875,
0.0966796875,
0.010009765625,
-0.000667572021484375,
-0.061279296875,
-0.053466796875,
0.0634765625,
0.00811767578125,
-0.039794921875,
0.057861328125,
0.00933837890625,
-0.0830078125,
0.038818359375,
0.0262451171875,
0.001708984375,
0.03466796875,
-0.00970458984375,
0... | 29,962 | 29962 | |
the encyclopedic entry of M squared
In
optics
, a
Gaussian beam
is a
beam
of
electromagnetic radiation
whose transverse
electric field
and
intensity
(
irradiance
) distributions are described by
Gaussian functions
. Many
lasers
emit beams with a Gaussian profile, in which case the laser is said to be ... | 4 | [
0.031494140625,
-0.00177764892578125,
0.0289306640625,
0.0301513671875,
-0.03369140625,
-0.055419921875,
0.050537109375,
0.0002899169921875,
-0.031494140625,
-0.007537841796875,
0.1064453125,
0.07763671875,
0.04443359375,
-0.02099609375,
-0.0218505859375,
-0.024169921875,
0.012817382... | 29,963 | 29963 | |
differentiation help
October 12th 2008, 06:22 AM #1
Newbie
Joined
Oct 2008
Posts
20
differentiation help
Hi
I need to find the derivative of the following
y=(4sqrtx)^lnx
Ummmm, so I'm not really sure how to type that. It is the ("forth root" of x) to the power of (lnx).
I thought that may... | 5 | [
0.052734375,
-0.0859375,
0.07275390625,
-0.039306640625,
-0.034423828125,
-0.036376953125,
0.032470703125,
-0.01104736328125,
0.01397705078125,
0.0791015625,
0.072265625,
0.042236328125,
0.03466796875,
0.03955078125,
-0.004058837890625,
0.1455078125,
-0.064453125,
0.005340576171875... | 29,964 | 29964 | |
What are the benefits of rigorous modeling in heat exchanger design?
Copying and distributing are prohibited without permission of the publisher
What are the benefits of rigorous modeling in heat exchanger design?
This article examines three applications where rigorous heat exchanger models can boost value derived fr... | 5 | [
-0.07861328125,
-0.022705078125,
-0.013427734375,
-0.0008697509765625,
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-0.0791015625,
0.005584716796875,
0.042236328125,
-0.01220703125,
-0.03759765625,
-0.01007080078125,
0.0830078125,
-0.0634765625,
0.056884765625,
-0.103515625,
0.0206298828125,
-0.0... | 29,965 | 29965 | |
Calculation of expected value...
April 24th 2009, 02:04 AM #1
Newbie
Joined
Apr 2009
Posts
1
Calculation of expected value...
Hello all..
Here it follows..
X1, X2 are uniformly distributed over [0, 12]
Y1, Y2 are uniformly distributed over [0, 20]
We can define a new random variable D exp... | 5 | [
0.021728515625,
0.00775146484375,
0.00567626953125,
-0.125,
0.026611328125,
-0.07861328125,
-0.003692626953125,
0.056396484375,
-0.0267333984375,
0.042236328125,
0.05126953125,
0.05078125,
0.08251953125,
-0.015869140625,
-0.0150146484375,
0.00885009765625,
0.0198974609375,
-0.02014... | 29,966 | 29966 | |
Integration of Exponential and Trignometric functions
January 26th 2010, 01:57 AM #1
Newbie
Joined
Jan 2010
Posts
2
Let S be the integration symbol
1. S (dx)/ (x. sec ^3 (ln (x)) dx
2. S (x^3)/(sqrt (x^2 -4 )) dx
3. S (2sec x)/(sin x + cos x) dx
4. S sqrt (sqrt (x) -1) dx
5. S sec^3 (... | 5 | [
-0.0296630859375,
-0.043701171875,
0.023193359375,
-0.007659912109375,
0.061279296875,
0.04931640625,
0.00445556640625,
-0.00567626953125,
-0.0250244140625,
0.021484375,
0.06982421875,
-0.034423828125,
0.00958251953125,
-0.01416015625,
-0.005950927734375,
-0.052001953125,
0.007995605... | 29,967 | 29967 | |
maximize
November 11th 2008, 07:10 PM
cwarzecha
maximize
1. A hemisphere of radius 7 sits on a horizontal plane. A cylinder stands with its axis vertical, the center of its base at the center of the sphere, and its top circular rim touching the
hemisphere. Find the radius and height of the cylinder of maximu... | 5 | [
0.033203125,
0.0810546875,
-0.00634765625,
-0.0546875,
-0.01544189453125,
-0.0211181640625,
-0.044677734375,
0.13671875,
-0.0419921875,
0.0380859375,
-0.0810546875,
-0.0184326171875,
-0.0230712890625,
0.064453125,
-0.056396484375,
-0.0130615234375,
-0.0223388671875,
0.02783203125,
... | 29,968 | 29968 | |
How to Use the Gordon Growth Model
The Gordon growth model (GGM) is a commonly used version of the dividend discount model (DDM). The model is named after finance professor Myron Gordon and first appeared in his article "Dividends,
Earnings and Stock Prices," which was published in the 1959 edition of Review of Economi... | 5 | [
-0.1259765625,
-0.037353515625,
0.01275634765625,
0.01904296875,
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-0.04150390625,
-0.0069580078125,
0.025634765625,
0.054931640625,
0.0869140625,
0.033447265625,
0.046875,
-0.0172119140625,
-0.00113677978515625,
-0.055908203125,
-0.0301513671875,
0.014404296875,
... | 29,969 | 29969 | |
Homework Help
Posted by jasmin on Thursday, December 29, 2011 at 3:29pm.
you are using tiles to make a picture frame for a square photograph with sides 10 inches long. You want the frame to form a uniform border around the photograph, You have enough tiles to cover 300
square inches. What is the largest possible frame... | 4 | [
0.07373046875,
0.12451171875,
0.0133056640625,
-0.13671875,
0.01287841796875,
-0.03076171875,
0.0216064453125,
0.043212890625,
-0.1416015625,
0.030517578125,
-0.038818359375,
0.031982421875,
0.0205078125,
0.11572265625,
-0.0087890625,
0.033203125,
0.004180908203125,
0.037841796875,... | 29,970 | 29970 | |
Question about presentation of cyclic group
September 15th 2008, 06:41 AM #1
Super Member
Joined
Mar 2006
Posts
705
Thanks
2
Question about presentation of cyclic group
I want to list the elements of $T=<a,b : a^6=1, b^2=a^3,bab^{-1}=a^{-1} >$
So from my understanding, $a^ia^j=a^{i+j} \ \ \ \for... | 4 | [
-0.064453125,
0.07080078125,
-0.0072021484375,
0.039306640625,
-0.08349609375,
-0.004730224609375,
0.04248046875,
-0.049072265625,
-0.0021514892578125,
-0.0322265625,
-0.0191650390625,
0.0230712890625,
0.1064453125,
-0.072265625,
-0.013916015625,
0.0966796875,
-0.01507568359375,
0.... | 29,971 | 29971 | |
Differential equation
February 8th 2009, 06:44 PM #1
Banned
Joined
Feb 2009
Posts
8
Differential equation
Find the $general solution$ of the equation $x+2y\sqrt{x^{2}+1}\frac{dy}{dx}=0$
I then separated the variables:
$<br /> <br /> 2ydy=\frac{-x}{\sqrt{x^2+1}}dx<br />$
I'm just struggling ... | 5 | [
-0.03662109375,
-0.0380859375,
0.1123046875,
0.01019287109375,
0.03662109375,
-0.041259765625,
-0.08349609375,
-0.01092529296875,
-0.0189208984375,
-0.0986328125,
0.072265625,
-0.033203125,
0.04248046875,
0.0869140625,
-0.0908203125,
-0.02734375,
0.0439453125,
-0.05224609375,
-0.... | 29,972 | 29972 | |
Dirac Delta Function Integral
April 29th 2010, 07:39 AM #1
Newbie
Joined
Apr 2010
Posts
11
Dirac Delta Function Integral
Hi.
Im having some trouble with the following question:
"Evaluate the integral: e^x [dirac(x + 1) − dirac(x − 2)] dx from -ve infinity to 1"
Am i supposed to use a Lapla... | 5 | [
-0.057373046875,
0.05322265625,
0.02294921875,
-0.11376953125,
0.06396484375,
-0.04248046875,
0.01708984375,
-0.00653076171875,
-0.0771484375,
-0.000919342041015625,
0.0732421875,
-0.0303955078125,
-0.0322265625,
0.003662109375,
0.072265625,
-0.1298828125,
0.0238037109375,
-0.02844... | 29,973 | 29973 | |
Probability of getting two choices out of 3 dice • /r/math
all 5 comments
[–]Superdorps2 points3 points4 points
sorry, this has been archived and can no longer be voted on
[–]chickeneater9[S] 0 points1 point2 points
sorry, this has been archived and can no longer be voted on
[–]a77ackmoleCombinatorics1 point2 poin... | 4 | [
-0.039306640625,
-0.1484375,
-0.09814453125,
-0.022705078125,
-0.0146484375,
0.01190185546875,
0.060791015625,
-0.035888671875,
0.1376953125,
0.0145263671875,
-0.01434326171875,
-0.035400390625,
0.0279541015625,
-0.0135498046875,
0.064453125,
-0.0267333984375,
-0.0198974609375,
0.0... | 29,974 | 29974 | |
Write this complex number on the form a + bi
October 13th 2012, 01:41 PM #1
Junior Member
Joined
Jul 2012
From
Earth
Posts
56
Write this complex number on the form a + bi
I'm dealing with this problem where I'm to write the complex number below on the form a + bi.
$\frac {\sqrt{2+i}}{\sqrt{2-i}}... | 4 | [
-0.031982421875,
-0.0004024505615234375,
0.048828125,
0.052734375,
-0.04052734375,
-0.08447265625,
-0.02001953125,
0.05322265625,
0.036865234375,
0.06640625,
0.0537109375,
-0.037353515625,
0.01416015625,
0.095703125,
0.0048828125,
0.0174560546875,
-0.053955078125,
0.00604248046875,... | 29,975 | 29975 | |
Limits Help!
October 20th 2006, 07:43 AM #1
Senior Member
Joined
Jul 2006
From
Shabu City
Posts
381
Limits Help!
Use the definition of limits, find the delta which corresponds to the epsilon givn the limit:
lim ( 1+x ) ^ 1/x = e ; given the epsilon = .001
x--->0
my solns:
|(1+x)^1/x ... | 4 | [
0.022216796875,
-0.003662109375,
0.052490234375,
-0.01324462890625,
0.01519775390625,
-0.0751953125,
0.0576171875,
0.0693359375,
-0.00787353515625,
-0.016357421875,
0.0242919921875,
-0.07421875,
0.06787109375,
0.06982421875,
0.003936767578125,
-0.007598876953125,
0.02783203125,
-0.... | 29,976 | 29976 | |
of Rational Numbers
Field \(\QQ\) of Rational Numbers
The class RationalField represents the field \(\QQ\) of (arbitrary precision) rational numbers. Each rational number is an instance of the class Rational.
Interactively, an instance of RationalField is available as QQ:
Values of various types can be converted to... | 5 | [
-0.064453125,
0.005035400390625,
-0.07275390625,
0.00738525390625,
-0.07080078125,
-0.021484375,
0.06982421875,
-0.0262451171875,
0.0230712890625,
-0.06787109375,
0.0185546875,
-0.035400390625,
0.0206298828125,
0.053466796875,
0.0242919921875,
-0.05517578125,
-0.06591796875,
0.0235... | 29,977 | 29977 | |
Solving a trig equation?
October 26th 2009, 11:59 AM #1
Newbie
Joined
Sep 2009
Posts
19
Solving a trig equation?
I need to solve the following trig expression:
4cos4θ=0 (reads four cosine four theta)
Its the formula of a graph but i need to find the zeros or the points that it passes through th... | 4 | [
-0.0025177001953125,
-0.01068115234375,
-0.01007080078125,
-0.02294921875,
-0.0498046875,
0.00011968612670898438,
0.000667572021484375,
0.0576171875,
0.07568359375,
-0.025390625,
0.119140625,
-0.0380859375,
0.0286865234375,
0.06884765625,
0.037353515625,
0.048583984375,
-0.0223388671... | 29,978 | 29978 | |
Iterative Signal Processing for Blind Code Phase Acquisition of CDMA 1x Signals for Radio Spectrum Monitoring
Journal of Electrical and Computer Engineering
Volume 2010 (2010), Article ID 282493, 8 pages
http://dx.doi.org/10.1155/2010/282493
Research Article
Iterative Signal Processing for Blind Code Phase Acquisitio... | 4 | [
-0.09228515625,
-0.0084228515625,
-0.024658203125,
-0.003143310546875,
-0.050048828125,
-0.052001953125,
-0.0181884765625,
-0.053955078125,
-0.032470703125,
0.049560546875,
0.0216064453125,
0.0123291015625,
0.04150390625,
-0.146484375,
0.01080322265625,
-0.05517578125,
-0.07568359375... | 29,979 | 29979 | |
Probability question.
March 28th 2009, 11:24 PM #1
Junior Member
Joined
Mar 2009
Posts
52
Probability question.
Hi All,
I have a question related to probability :-
Q - Ten tickets are numbered 1,2,3 ..... 10 .Six tickets are selected at random one at a time with replacement.The probablity that ... | 4 | [
-0.032958984375,
0.039794921875,
0.055908203125,
-0.04296875,
0.0113525390625,
0.048583984375,
0.0859375,
0.0703125,
0.0191650390625,
0.080078125,
-0.11962890625,
0.0021820068359375,
0.03076171875,
0.046142578125,
-0.0026702880859375,
-0.028564453125,
0.00439453125,
-0.07666015625,... | 29,980 | 29980 | |
Find inverse and prove
February 23rd 2010, 06:29 PM #1
Junior Member
Joined
Jan 2007
Posts
26
I'm having trouble with two problems that I'm stuck on, I think the fact that they involve fractions is confusing me...
1) f(x) = (x+1)/x
f^-1(y) = (x+1)/x
yx = (x+1)
yx-1 = x
check:
y =... | 4 | [
-0.07177734375,
-0.04833984375,
0.01904296875,
0.033935546875,
0.0296630859375,
-0.05322265625,
-0.0306396484375,
0.02294921875,
-0.004669189453125,
0.01708984375,
0.0654296875,
-0.0751953125,
-0.0286865234375,
0.05078125,
-0.0224609375,
0.0849609375,
-0.01165771484375,
-0.06176757... | 29,981 | 29981 | |
Problem Solving with Linear Equations
August 27th 2006, 02:09 PM #1
Newbie
Joined
Aug 2006
Posts
2
Problem Solving with Linear Equations
I need help with the following questions:
1. One half my age is 10 years more than one-third my age. How old am I?
2. A maker of an orange drink can purchase ... | 4 | [
-0.0260009765625,
0.005706787109375,
-0.0030059814453125,
-0.033447265625,
0.0087890625,
0.0673828125,
0.0712890625,
0.041015625,
-0.0634765625,
-0.007659912109375,
0.10400390625,
-0.06103515625,
0.0250244140625,
0.043212890625,
0.040283203125,
0.0595703125,
-0.00677490234375,
-0.0... | 29,982 | 29982 | |
Newton's method
March 10th 2010, 12:24 AM #1
Junior Member
Joined
Jan 2010
Posts
30
Newton's method
Use Newton's method to approximate to within 10^-4, the value of x that produces the point on the graph of y = 1/x that is closest to (2, 1).
I tried setting p0 = 2 and using the algorithm $p_{n} = p_... | 5 | [
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0.032470703125,
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0.05615234375,
0.051025390625,
-0.03369140625,
0.003692626953125,
0.03369140625,
... | 29,983 | 29983 | |
Reliability Modeling and Optimization Using Fuzzy Logic and Chaos Theory
International Journal of Quality, Statistics, and Reliability
Volume 2012 (2012), Article ID 847416, 9 pages
http://dx.doi.org/10.1155/2012/847416
Research Article
Reliability Modeling and Optimization Using Fuzzy Logic and Chaos Theory
^1Depar... | 4 | [
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On the Distance between Three Arbitrary Points
Journal of Function Spaces and Applications
Volume 2013 (2013), Article ID 194631, 7 pages
http://dx.doi.org/10.1155/2013/194631
Research Article
On the Distance between Three Arbitrary Points
Department of Mathematics, Faculty of Science, King Mongkut’s University of T... | 5 | [
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Determining efficiency of multiplication algorithm
This explanation is from my text book for analyzing time efficiency of (non-recursive) algorithms.
1) Decide on a parameter indicating the input size
2) Identify the algorithm's basic operation
3) Setup a sum expressing the number of times the basic operation is exe... | 5 | [
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Homework Help
Posted by Amy on Saturday, September 14, 2013 at 12:36pm.
To simulate the extreme accelerations during launch, astronauts train in a large centrifuge. If the centrifuge diameter is 13.5m , what should be its rotation period to produce a centripetal
acceleration of
If the centrifuge diameter is 13.5m , w... | 4 | [
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The Elliptic Curve Factorization Method
The elliptic curve factorization method (ECM) is the fastest way to factor a known composite integer if one of the factors is relatively small (up to approximately 80 bits / 25 decimal digits). To
factor an arbitrary integer it must be combined with a primality test. The ECM.fac... | 5 | [
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... | 29,988 | 29988 | |
Question
December 3rd 2008, 10:29 PM
Steph07
Question
If anyone can help me with any of these three problems, Its 2 am where I am at.. n I cant sleep until these are finished, i tried looking in my book to further explain, but I am totally stuck any
help would be so greatly appreciated... Thank u so much:
... | 4 | [
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Showing that the product of 2 matrices in a set of matrices is also in the set
November 25th 2010, 06:09 PM
juanma101285
Showing that the product of 2 matrices in a set of matrices is also in the set
Hi, I have managed to show that the sum of 2 matrices in one set is still in the same set, but I don't know how t... | 4 | [
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0.061523437... | 29,990 | 29990 | |
A New Hybrid Iterative Scheme for Countable Families of Relatively Quasi-Nonexpansive Mappings and System of Equilibrium Problems
International Journal of Mathematics and Mathematical Sciences
Volume 2011 (2011), Article ID 131890, 23 pages
http://dx.doi.org/10.1155/2011/131890
Research Article
A New Hybrid Iterative... | 4 | [
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FP errors
4-6 ERRORS IN FLOATING POINT COMPUTATIONS
******************************************
Excerpt from The Art of Computer Programming by Donald E. Knuth:
----------------------------------------------------------------
"Floating-point computation is by nature inexact, and it is not
difficult to misu... | 5 | [
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Markov Chains - Steady State
January 6th 2008, 10:33 PM
3leggeddog
Markov Chains - Steady State
"Find a steady state of the Markov process given by the following transition matrix:
(.7 .3 0 )
(.2 .4 .8)
(.1 .3 .2)
Does anyone know how to go about doing this?
Thanks,
3LD
January 7th 20... | 4 | [
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-0.0127563476... | 29,993 | 29993 | |
Optimal Control Strategy for Traffic Driven Epidemic Spreading Based on Community Structure
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 204093, 10 pages
http://dx.doi.org/10.1155/2013/204093
Research Article
Optimal Control Strategy for Traffic Driven Epidemic Spreading Based on Community Str... | 4 | [
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factorial notation help
December 8th 2008, 09:24 PM #1
Newbie
Joined
Nov 2008
Posts
14
factorial notation help
(n+2)/n!=56
I'm new to this and having trouble trouble breaking this down, could someone please give me a hint to get this started?
you are saying to divide $n+2$ by $n!$ and get 56.
... | 4 | [
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Home-Brew Parallel Transmission Lines
Some (Old) Notes on Home-Brew Parallel Transmission Lines
L. B. Cebik, W4RNL
Many hams have the urge to home-b... | 4 | [
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Complex Powers
You're no doubt familiar with Euler's expression
exp(i x) = cos(x) + i sin(x)
You're probably also familiar that logarithms can be expressed in any base you'd like, like this:
log[a] x = ( log[b] x ) / ( log[b]] a )
For example, if your calculator has only log base 10, and you want to compute log[2]... | 5 | [
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... | 29,997 | 29997 | |
Homework Help
Posted by Da S on Friday, December 30, 2011 at 11:46pm.
a wire is bent into a rectangle.the ratio of the length of the rectangle to its breadth is 9:5.if the total length of the wire is 84cm,find the area of the rectangle formed by the wire
• Math,Ratio - DrBob222, Saturday, December 31, 2011 at 12:37... | 4 | [
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Inertial/non-inertial reference frames
I'm a bit unsure about the last couple of bits of this question, and I'm hoping someone might be able to help.
1. The problem statement, all variables and given/known data
a) Let a reference frame with origin O & Cartesian axes (x, y, z) be fixed relative to the surface of the r... | 5 | [
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