content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Finite dimensional automorphic representations of a definite quaternion with prime discriminant and Hecke action
up vote 8 down vote favorite
2
Before stating the questions that I have, which are very specific and probably not so interesting to someone who has never thought about these things, I need to introduce some... | 5 | [
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0.041259765625,
0.00640869140625,
0.0751953125,
-0.06689453125,
0.06689453125,
0.00160980224609375,
0.0344... | 11,200 | 11200 | |
Units Mod N
March 9th 2008, 07:45 AM #1
Units Mod N
ive got the answer to this question, but it took a lot of time and was very tedious. i just want to know if there is a nice quick solution so when i hand in the worksheet it doesnt look a mess.
the question is
calculate 17^-1 in Z43 (integers mod 43)
... | 4 | [
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Homework Help
Posted by Anita on Thursday, January 19, 2012 at 9:08pm.
What value for function y=3cos(t-pi) + 2 gives an instantaneous rate of change of 0?
a) 0
b) pi/2
c) pi/3
d) pi/4
• Math - wow, Thursday, January 19, 2012 at 9:14pm
pi/3
• Math - Reiny, Thursday, January 19, 2012 at 11:17pm
dy/d... | 4 | [
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Normal distribution question involving samples
July 17th 2009, 11:11 PM #1
Newbie
Joined
Jul 2009
Posts
15
Normal distribution question involving samples
Q: The mass of coffee in a randomly chosen jar sold by a certain company may be taken to have a normal distribution with mean 203g and standard deviati... | 4 | [
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[SOLVED] Finding the last two digits of a number raised to a large exponent
August 2nd 2009, 10:04 AM
diddledabble
[SOLVED] Finding the last two digits of a number raised to a large exponent
Okay so if you are given $7^{999}$ how would you figure out the last two digits of the munber using mod.
August 2nd 2009,... | 5 | [
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0.039306... | 11,204 | 11204 | |
Trig equations
January 17th 2010, 02:17 PM #1
Junior Member
Joined
Jan 2010
Posts
25
Trig equations
Hello all! I'm studying for a math cumulative on tuesday, and I've come across these problems that I cant solve.
How do I solve this between 0 inclusive and 2 pi?
Cos^2x + 2sinxcosx - sin^2 x = 0... | 4 | [
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Proof
Filed under: Philosophy — Jonathan Lewis @ 5:56 pm BST Mar 30,2012
Here’s a wonderful lesson from Cary Millsap – be very careful if you ever want to sell him anything – that reminded me of a Powerpoint slide I had produced for a presentation a few years ago. It took
me a little time to track it down but I final... | 5 | [
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Multiplying a Number by Itself
Date: 02/27/2001 at 15:57:54
From: Justin Fleming
Subject: Square roots
You have adequately explained how you get a square root, and I
understand that part of it. My question to you is so what? What does
it mean to multiply a number by itself?
I can understand the concept of adding or... | 4 | [
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Equilibrium Constants from Initial Concentrations
Brightstorm is like having a personal tutor for every subject
See what all the buzz is about
Check it out
Equilibrium Constants from Initial Concentrations 3,384 views
Here are some tips and trick for calculating equilibrium concentrations from initial concentration... | 5 | [
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positive elements in tensor products
up vote 8 down vote favorite
3
Let $A \otimes B$ be the algebraic tensor of two $C^{\ast}$ -algebras, and an element x in $A\otimes B$ is positive if $x=yy^{\ast}$. Then is it always possible to write x in the form $x=\sum a_i\
otimes b_i$, where $a_i$ and $b_i$ are positive elemen... | 5 | [
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Do all Dedekind domains have the "Riemann-Roch property"?
up vote 3 down vote favorite
Let $R$ be a Dedekind domain with fraction field $K$.
Say that a Dedekind domain $R$ has the Riemann-Roch property if: for every nonzero prime ideal $\mathfrak{p}$ of $R$, there exists an element $f \in (\bigcap_{\mathfrak{q} \neq ... | 5 | [
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Prove that G acts transitively on normal subgroup orbits on nonempty finite set A
November 17th 2011, 08:59 AM
Amer
Prove that G acts transitively on normal subgroup orbits on nonempty finite set A
The Question is let $G$ acts transitively on a nonempty finite set A
let H be normal subgroup of G,Let Orbits ... | 5 | [
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Analytical Mechanics
MOTION OF A PARTICLE 113
But if TI and r2 denote the distances of the particles from the axis of rotation, and P the period of revolution, then
Therefore -1 = ~2
ra2 r-i
gives the ratio of the masses of the particles as well as those of the given bo... | 5 | [
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Renting versus Buying a Home
Subject: Real Estate - Renting versus Buying a Home
Last-Revised: 21 Nov 1995
Contributed-By: Jeff Mincy (mincy at rcn.com), Chris Lott (contact me)
This note will explain one way to compare the monetary costs of renting vs. buying a home. It is strongly oriented towards the US system, t... | 5 | [
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Up a Lazy River
COMPUTING SCIENCE
Up a Lazy River
Meandering through a classic theory of why rivers meander
Around the Bend
Leopold brought a distinctively quantitative and mathematical style to the study of rivers. For example, he formulated scaling laws that describe how the cross section of a natural channel cha... | 4 | [
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help me
04-14-2010 #1
Registered User
Join Date
Apr 2010
Posts
4
help me
Magic Quadrant
Magic Square is a square matrix n * n contains the numbers 1 to sqr (n) (each number only once), so that the total numbers of each line separately equals the sum of the numbers of each column;
Ende and equal a... | 4 | [
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A comparison question for non-positively curved disks
up vote 12 down vote favorite
1
Let $A$ and $B$ be two closed, 2-dimensional, non-positively-curved Riemannian disks (not necessarily with convex boundary). Suppose that their boundaries $\partial A$ and $\partial B$ have the same
length, and identify $\partial A$ ... | 5 | [
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Differentiation
April 18th 2010, 02:59 PM
mike21
Differentiation
need help differentiating (6e^2x-x)^3
also finding the first and second derivatives for f(x)=1-2x over e^x
I used the general power rule to get -2(e^x)-e^x(1-2x) over (ex)^2, but I dont know if thats right and don't know where to go fr... | 5 | [
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0.0588... | 11,217 | 11217 | |
Solutions of higher order linear equations
September 26th 2013, 01:05 PM #1
Junior Member
Joined
Sep 2010
Posts
64
Solutions of higher order linear equations
Hi,
I am going through some solved problems, but I don't understand the answers very well... I would really appreciate it if someone could exp... | 5 | [
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How are the classifying space of $E_8$ and $K(\mathbb{Z},4)$ related?
up vote 27 down vote favorite
10
I recently heard the following fact :
Up to the $15$th skeleton, the classifying space $BE_8$ and $K(\mathbb{Z},4)$ are homotopy equivalent?
I have two questions on this :
(1) Is there any easy way to see this? Of... | 4 | [
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Fermat's Last Theorem in the cyclotomic integers.
up vote 18 down vote favorite
5
Kummer proved that there are no non-trivial solutions to the Fermat equation FLT(n): $x^n + y^n = z^n$ with $n > 2$ natural and $x,y,z$ elements of a regular cyclotomic ring of integers $K$.
I am looking for non-trivial solutions to the... | 4 | [
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Math Forum Discussions - Re: Could 0^0=0? Maybe!
Date: Sep 26, 2013 10:54 AM
Author: David C. Ullrich
Subject: Re: Could 0^0=0? Maybe!
On Wed, 25 Sep 2013 14:24:54 -0700 (PDT), Dan Christensen
<Dan_Christensen@sympatico.ca> wrote:
>As taught in high schools and many university courses, 0^0 is undefined.
Does the phr... | 4 | [
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Complexity of an iterative method?
up vote 0 down vote favorite
Problem:
I want to implement the Jacobi method. It is similar to a fix point method:
Xn+1 = P Xn +Q
if X* verify X=PX +Q
then if Xn converge then it converge to X*
let say I succeed in finding alpha <1 such that :
||PX|| < alpha * ||X|| (usually alp... | 5 | [
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Petri Net Programming (Part 2)
Petri Net Programming (Part 2)
guest post by David A. Tanzer
An introduction to stochastic Petri nets
In the previous article, I explored a simple computational model called Petri nets. They are used to model reaction networks, and have applications in a wide variety of fields, includ... | 4 | [
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Expected number of trials to cover certain probability mass for a probability density function?
up vote 0 down vote favorite
Suppose we have a univariate random variable $X\sim\mathcal{P}$ with probability density function $f(x):\mathbb{R}\to\mathbb{R}$, $\int_{-\infty}^{\infty}f(x) dx = 1$, we then draw $n$ samples
$... | 5 | [
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Partial Fractions.
April 12th 2010, 01:49 PM
TheBerkeleyBoss
Partial Fractions.
I need to use partial fractions on this term:
$<br /> \dfrac {1} {(s + 1)[(s-1)^2 +1]}<br />$
this term (note: it said $\omega eq 4)$:
$<br /> \dfrac {s} {(s^2 + 4)(s^2 + \omega ^2)} + \dfrac {s} {(s^2 + \omega ^2)}<br... | 5 | [
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Posts from November 2010 on IR Thoughts
Understanding Correlation
29 Monday Nov 2010
Posted in Data Mining, SEO Myths, Statistics and Mathematics
I came across Professor R.J. Rummel page on Understanding Correlation. This is an old, but still relevant book-like Web page on how to interpret properly correlation co... | 5 | [
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0.03491210937... | 11,226 | 11226 | |
IMO Answer Key SET B
ntsexamination.blogspot.in
Friday, December 21, 2012
Posted by yatish at 9:50 AM
3 comments:
Sir Some Answers Are Wrong Which I Am Telling You In class 8 imo
Question 19- There Is No Word That Can Be Formed From G,R,A And P.Hence Answer Should Be Option b) M
Question 23- Minimum ... | 4 | [
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Homework Help
Posted by The Boss on Tuesday, March 12, 2013 at 9:43am.
Square ABCD and circle T have equal areas and share the same center O.The circle intersects side AB at points E and F.Given that EF=√(1600-400π),what is the radius of T ?
• geometry - Steve, Tuesday, March 12, 2013 at 11:30am
Hmmm. Let's se... | 4 | [
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Can you prove that hypergraphs with n-1 edges are partially 2 colorable?
up vote 3 down vote favorite
I can. But my proof uses a theorem (which I do not reveal yet to avoid influencing you) and it feels like an overkill, so I wonder if there is a simple proof. Now the problem.
Suppose we have a hypergraph on n vertic... | 5 | [
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A variance component based multi-marker association test using family and unrelated data
Abstract
Background
Incorporating family data in genetic association studies has become increasingly appreciated, especially for its potential value in testing rare variants. We introduce here a variance-component based
associati... | 4 | [
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... | 11,230 | 11230 | |
Math Help
March 15th 2008, 09:45 PM #1
Banned
Joined
Feb 2008
Posts
24
Trig
The displacement of a certain object is given as a function of the time $t$ (in seconds) by $s = sin \;t + cos\; 2t$. Find the smallest positive value of $t$ for which the displacement is zero.
Is the answer $t = 90$
U... | 4 | [
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Lecture 11: Theory of General Second-order Linear Homogeneous ODEs
y' and y''. So, q(x)*y equal zero. The linearity of the equation, that is, the form in which it appears is going to be the key idea today. Today is going to be theoretical, but some of the ideas in
it are the most important in the course. So, I don't ha... | 5 | [
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A topic on series subjects. The Fibonacci Sequence.
August 20th 2010, 05:34 AM #1
Newbie
Joined
Aug 2010
From
Sibulan
Posts
12
A topic on series subjects. The Fibonacci Sequence.
Suppose the Fibonacci sequence is a geometric sequence (since the differences of the first few terms repeats the sequence)... | 5 | [
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0... | 11,233 | 11233 | |
Taqi al Din Ibn Ma’ruf 's Work on Extracting the Cord 2[sup]o[/sup] and Sin 1[sup]o[/sup]
This article by Professor Sevim Tekeli, a leading historian of science in the Ottoman period, deals with an aspect of the work of Taqi al-Din Ibn Ma'ruf in trigonometry, a mathematical discipline
which studies the relationships be... | 5 | [
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charlesflorian
Projectivity (continued)
So what does it mean for a variety to be projective? Well, that’s easy: A variety is projective if you can embed it in projective space.
That’s easy, but that’s not particularly helpful.
What are the benefits of being projective? Why is it something that we should care about?
... | 4 | [
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Comparison test for convergence/divergence
January 9th 2012, 05:23 AM
Shizaru
Comparison test for convergence/divergence
Ok so basically we are told about this comparison test which says if one series is greater or equal than another for all values, and converges, so does the second series. and if the first is l... | 5 | [
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need urgent help
December 10th 2012, 05:01 PM
flor
need urgent help
I need help with these, step by step solution PLEASE HELP
3-2/y
1/y+4
2x- x 2 - x
2-x
x-1 - x+1
x+1 x-1
x-1 + x+1
x+1 x-1
December 10th 2012, 06:11 PM
topsquark
Re: need urgent help
December 10th 2012, 0... | 4 | [
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Generalizations of "standard" calculus
up vote 19 down vote favorite
10
We have the usual analogy between infinitesimal calculus (integrals and derivatives) and finite calculus (sums and forward differences), and also the generalization of infinitesimal calculus to
fractional calculus (which allows for real and even c... | 5 | [
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DOCUMENTA MATHEMATICA, Extra Vol. ICM III (1998), 611-622
DOCUMENTA MATHEMATICA
, Extra Volume ICM III (1998), 611-622
Gérard Iooss
Title: Travelling... | 4 | [
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initial value problem DFQ
January 16th 2009, 12:48 PM
cheertcc101
initial value problem DFQ
I need to solve this initial value problem:
sin(x)dy/dx + ycos(x) = xsin(x) with initial condition y(pi/2)=2
Please help there are NO examples of my book of this type of problem
THANKS
January 16th 2009, 1... | 5 | [
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Constructing a special infinite-dimensional vector bundle
up vote 3 down vote favorite
1
Let $M$ and $N$ be finite dimensional smooth manifolds and $p: E \rightarrow N$ a finite rank vector bundle. $M$ can be assumed to be compact if necessary but I would prefer to work without this
assumption.
As described e.g. in K... | 4 | [
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Intergration help
February 23rd 2010, 05:10 AM #1
Newbie
Joined
Feb 2010
Posts
3
1. (5x + 3) / (x^(2) + 2x + 5)
2. (3x + 6) / [x^(2) + 8x + 7]^(1/2)
i am struggling to intergrate these two. solution method would be appreciated alot.
$\int{\frac{5x + 3}{x^2 + 2x + 5}\,dx} = \frac{5}{2}\int{... | 5 | [
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A problem from a grade 9 math competition
March 19th 2009, 01:57 AM
dashed
A problem from a grade 9 math competition
I don't know whether I posted in the proper forum.
This is a question from a 2009 grade 9 math competition.
The question
Starting with the input (m,n), Machine A gives the output (n,... | 4 | [
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0.0018... | 11,243 | 11243 | |
Exponent of Sylow $p$-subgroup of classical groups over a field of characteristic $p$
up vote 5 down vote favorite
2
Let $G$ be a classical group of dimension $n$ over $GF(q)$ where $q=p^f$ is a prime power, and $P$ be a Sylow $p$-subgroup of $G$. What is the maximal order of elements, i.e. the exponent, of $P$?
For... | 4 | [
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What is the shortest proof of the existence of a prime between $p$ and $p^2$ ? other examples?
up vote 2 down vote favorite
1) It is well known that between a prime $p$ and $p^2$ always exist a prime, but what is the shortest proof of that (by elementary methods or not)?
(One can say that we can have it as a collorar... | 5 | [
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Having Trouble with Integral?
January 27th 2009, 12:13 PM #1
Having Trouble with Integral?
Hi, am doing a question looking for the length of a curve, the function given is $y=e^x + 1/4e^-x$, from $[1,0]$ is my interval.
I got all the parts down i got $dy/dx=e^x-1/4e^-x$then from the length of curve formula,
... | 5 | [
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semidirect product of groups
semidirect product of groups
Naturally, we start with the construction of semi–direct products.
Definition 1.
Let $H$ and $Q$ be groups and let $\theta:Q\longrightarrow\operatorname{Aut}(H)$ be a group homomorphism. The semi–direct product $H\rtimes_{\theta}Q$ is defined to be the group... | 4 | [
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Same Shape but
Back to the Table of Contents
A Review of Basic Geometry - Lesson 12
Same Shape but maybe not same Size: Similarity
Lesson Overview
Scale models... | 4 | [
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Math Help
April 7th 2008, 02:19 PM #1
Member
Joined
Mar 2008
Posts
88
Integrate
I am stuck on these three problems because I didn't understand how the teacher was teaching it. The test is in two days.
1.∫(x^3-2x+2)dx
2.∫(sqrt(x) - 1/x^2)dx
3.∫(2x^3+1)^2 x^2 dx
Thanks for the help.
... | 5 | [
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Tensor product of linear mappings versus chain complexes
up vote 3 down vote favorite
3
A chain complex of vector spaces $X_k$ is a sequence of linear mappings
$\dots \overset{d_{k-1}}{\longrightarrow} X_k \overset{d_{k}}{\longrightarrow} X_{k+1} \overset{d_{k+1}}{\longrightarrow} \dots$
such that $d_{k+1} \circ d_k... | 4 | [
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High School Math
Posted by Brian on Wednesday, October 3, 2012 at 3:20pm.
Y over -6 > 10 and i need to solve
A. y < –16
B. y > –60
C. y > 4
D. y < –60 I got C, but thats not right
• High School Math - Steve, Wednesday, October 3, 2012 at 3:26pm
y/-6 > 10
y < -60
Looks like D
When you multiply... | 4 | [
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0.031005859375,
-0.1... | 11,251 | 11251 | |
Geometry Help & Proofs
Posted by Anonymous on Wednesday, May 14, 2014 at 6:34am.
The ratio of the volume of Cylinder A to the volume of Cylinder B is 1:5. Cylinder A is similar to Cylinder C with a scale factor of 1:2 and Cylinder B is similar to Cylinder D with a scale factor of
1:3. What is the ratio of the volume o... | 4 | [
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Fundamental Group Question
May 2nd 2009, 09:50 AM
Erdos32212
Fundamental Group Question
What is $\pi_1(S^1 \vee S^1 \vee S^2)$?
Is it $\mathbb{Z} * \mathbb{Z} * \{1\}$ by Van Kampen's Theorem?
Thanks, I just wanted to check this.
May 2nd 2009, 01:30 PM
GaloisTheory1
Yes, that is correct. It is a... | 5 | [
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Dr. Vasilis Pagonis- McDaniel College
FIRST ORDER KINETICS model
The simplest model in Thermoluminescence consists of two energy levels: the electron traps and the recombination center (RC) shown in the figure below. This is also known as the
One-Trap-One-Recombination-Center (OTOR) model.
... | 4 | [
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... | 11,254 | 11254 | |
Student's t-test (statistics)
Student’s t-test
Article Free Pass
Student’s t-test, in statistics, a method of testing hypotheses about the mean of a small sample drawn from a normally distributed population when the population standard deviation is unknown.
In 1908 William Sealy Gosset, an Englishman publishing unde... | 4 | [
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0.125,
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Sum of Independent Random Variables - Moments
November 19th 2009, 03:33 PM
azdang
Sum of Independent Random Variables - Moments
Let $X_1,...,X_n$ be independent, each with mean 0, and each with finite third moments. Show that:
$E((\sum_{i=1}^{n}X_i)^3)=\sum_{i=1}^n E(X_i^3)$
It gives a hint to use char... | 5 | [
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Characterization of the line profile
18. CHARACTERIZATION OF THE LINE PROFILE
Some astrophysical parameters can be extracted from a spectrum by the measurement of the spectral line profile. For example the measurement of the profile gives access to the temperature of surface
of a star, at its disk speed, at the speed ... | 4 | [
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Trying to understand this problem...Integration by Parts
October 13th 2009, 06:58 PM
Med-School Crys
Trying to understand this problem...Integration by Parts
I have been racking my head for the past week trying to understand these types of exercises, and for the most part, they're usually understandable as I DO ... | 5 | [
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PSEUDO INVERSE
Dataplot Vol 1 Auxiliary Chapter
PSEUDO INVERSE
Name:
Type:
Purpose:
Compute the transpose of the Moore-Penrose pseudo inverse of a matrix.
Description:
If A is a square matrix of full rank, then the inverse of A exists (A is referred to as an invertible matrix) and
has the solution... | 5 | [
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... | 11,259 | 11259 | |
Does every embedding of one unipotent group (over R) in another extend to an embedding of the respective upper triangular matrix groups?
up vote 3 down vote favorite
Let $T^*$ denote upper triangular matrices (of the appropriate size) with positive diagonal entries and $\mathrm{UT}$ upper triangular matrices with all ... | 5 | [
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Demazure, lectures on p-divisible groups, III.2, the Witt rings over Z
This entry is about a section of the text
The Artin-Hasse exponential series? $E$ can be written as
$E((a_0,\cdots),t)=exp(-\Sigma_{n\ge 0}t^{p^n}\Phi_n /p^n)$
with $\Phi_n(a_0,\cdots)=a_0^{p^n} + p a_1^{p^{n-1}}+\dots p^n a_n$
The $S_i$ in the ... | 4 | [
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Analysis and the Derivative
Date: 01/23/2001 at 14:19:58
From: Yvonne
Subject: Analysis and the Derivative
In my analysis class, we have come to the chapter on the derivative.
The text suggests considering the following problem. I'm having a
little trouble starting and I would greatly appreciate it if you could
help... | 5 | [
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The Hanging Chain
The first continuous system whose normal modes were known, the first use of Bessel functions, and a demonstration of Rayleigh's Principle
This is not a problem with great practical application, but it is of great historical interest and it is interesting to solve. By a chain we mean an extended, uni... | 5 | [
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... | 11,263 | 11263 | |
y
Kinematic viscosity
Cst ( Centistokes, Li Stokes ): cst;
St ( Stokes, Stokes ): Sri Lanka
The international system of units: mm2/s: mm / sec
Conversion relationships: 1Cst = 10-2 St = 1 mm2/s
Dynamic viscosity:
CP ( Centipoise ): cp;
P ( Poise ): park;
The international system of units: Pa w s: W seconds.
Conversi... | 4 | [
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Distance of two moving objects.
March 18th 2010, 03:48 AM
Neversh
Distance of two moving objects.
At noon ship A is 100 km west of ship B. Ship A travels south at 35km/h and ship B travels North at 25 km/hr. At 4pm how fast does the distance between them change?
I don't quite understand how to do this so a ... | 4 | [
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area of square
Area of Square
In this section we will discuss about Area of Square.
The formulas related to the above topic are as follows
Let ‘a’ be the length of each side of a square. Then,
•
Perimeter = 4a units
•
Area = a
^2
=( Perimeter/4)
^2
sq. units
•
Area = ½ (Diagonal)
^2
sq.units
•
Side of ... | 4 | [
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09. Nature's Math
We now turn to an interesting differential equation that has many applications. Its simplicity of expression belies its wide application in various branches of physics. It has several versions, we
will examine two.
Voltage at capacitor in series RC circuit.
Version 1:
(1)
y(t) + r c y'(t) = b
(2... | 4 | [
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Is the closure of the orbits of the mean curvature flow compact for a finite time?
up vote 2 down vote favorite
Question: Suppose $N$ is an $n$ dimensional immersed submanifold in a complete, non-compact manifold $M$, with bounded geometry. Suppose the mean curvature flow $F:N\times [0,q)\rightarrow M$
satisfies $... | 5 | [
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Michael Shulman
axiom of 2-choice
The following definition is due to Mathieu Dupont.
Conjecture
A (2,1)-exact and countably-coherent 2-category $K$ satisfies the axiom of 2-choice iff 1. $gpd(K)$ has enough discretes and 1. $disc(K)$ satisfies the ordinary axiom of choice (with respect to
regular epis).
The “if” di... | 4 | [
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When will a stiffness matrix become non-symmetric?
You are here
When will a stiffness matrix become non-symmetric?
Sun, 2012-06-24 07:53 - Khong Wui Gan
Hello, I would like to know under what situation will a stiffness matrix in a FEM problem become non-symmetric? Is there any good reference to this topic? Thanks.
... | 4 | [
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Modelling the effect of seasonal influenza vaccination on the risk of pandemic influenza infection
Abstract
Background
Recent studies have suggested that vaccination with seasonal influenza vaccine resulted in an apparent higher risk of infection with pandemic influenza H1N1 2009. A simple mathematical model
incorpor... | 4 | [
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Probability a Brownian particle with an exponentially distributed lifetime hits a sphere before vanishing
up vote 2 down vote favorite
Imagine I have a point source $p_0 = (x_0,y_0,z_0)$ that releases a point-like Brownian particle with a lifetime given by an exponentially distributed rate parameter $\lambda$. When th... | 5 | [
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-0.0... | 11,272 | 11272 | |
Cubic equation program not giving me right answers
08-23-2006 #1
Cubic equation program not giving me right answers
Im getting the wrong roots when running the program. The maths the program is based on is in the attatched image.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
... | 4 | [
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Figure
Resolution: standard / high
Figure 5.
An example how the Floyd-Warshall algorithm calculates the minimal transitive interaction uncertainties. Consider order I of the nodes (b): In the first iteration (k=1=a) nothing changes since no
path via 1 exists as 1 has no incoming edge. In the next iteration (k=2=b)... | 4 | [
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generate a list of combinations/sets of numbers with limited supplies
up vote 1 down vote favorite
Say I have 1 red ball, 1 blue ball, 2 yellow balls, and 3 green balls, for a total of 7 balls.
I want to select 3 balls from the group of seven. How many ways can I do this?
When I counted manually I got 11 combination... | 5 | [
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0.0361328125,
0.060302734375,
-0.023681640625,
... | 11,275 | 11275 | |
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Topic: Joke (one school formula and not a school withdraw... | 4 | [
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0.0625,
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Proportional Segments
3.2. Proportional Segments
• If two segments (AC and AD below) are divided proportionally (by drawing BE parallel to CD), then resulting corresponding segments are proportional (their ratios are equal) to each other and to the
original segments.
Segments AC and AD are divided proportionally, and... | 4 | [
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0.0717773437... | 11,277 | 11277 | |
Physics Archive | June 15, 2009 | Chegg.com
Physics Archive: Questions from June 15, 2009
• Anonymous asked
1 answer
• Anonymous asked
1 answer
• Anonymous asked
1 answer
• Anonymous asked
F... Show more
A object of mass 3.00 kg is subject to aforce
F[x]
that varies... | 5 | [
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dependent types in a 2-category
This is just bits and pieces for now; something more coherent will come later.
Overview
…
Of course, we should be able to treat an $n$-type as an $m$-type for any $m\ge n$. When $n=-1$ and $m=0$ this corresponds to replacing a proposition $\varphi$ by the set $\{ * | \varphi\}$, while... | 4 | [
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Do the elementary properties of mixed volume characterize it uniquely?
up vote 13 down vote favorite
2
Background
Take 2 convex sets in $\mathbb{R}^2$, or 3 convex sets in $\mathbb{R}^3$, or generally, $n$ convex sets in $\mathbb{R}^n$. "Mixed volume" assigns to such a family $A_1, \ldots, A_n$ a real number $V
(A_1,... | 5 | [
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... | 11,280 | 11280 | |
Countable Cartesian Product
September 2nd 2012, 07:31 AM
kalyanram
Countable Cartesian Product
Let $A_1, A_2, A_3, . . .$ be countable sets, and let their Cartesian product $A_1$ x $A_2$ x $A_3$ x ..... be defined to be the set of all sequences $(a_1, a_2, . . .)$ where $a_k$, is an
element of $A1$. Prove th... | 5 | [
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0.051513671875,
-0.04... | 11,281 | 11281 | |
Arctan approximation example
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Re: Arctan approximation example - Martin... | 5 | [
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Higher order divided differences and derivatives
up vote 2 down vote favorite
1
Let $f:R\rightarrow R$. If there exists the finite limit $$\lim_{(x,y) \rightarrow a \atop x\neq y} \frac{f((y)-f(x)}{y-x}$$ then obviously there is a finite derivative $f'(a)$ and is equal this
limit.
What about similar problem for highe... | 5 | [
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Fermat Numbers
Date: 01/25/2003 at 14:13:49
From: Ghori
Subject: Fermat Number
How can we prove that any two Fermat Numbers are coprime?
Date: 01/25/2003 at 23:19:33
From: Doctor Paul
Subject: Re: Fermat Number
First establish by induction the following identity:
[F_0 * F_1 * F_2 * ... * F_(n-1)] + 2 = F_n.
Then... | 5 | [
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Different ways to interpret Feynman diagrams
Feynman diagrams are the funny pictures that Richard Feynman drew on his van:
You see that a Feynman diagram is composed of several lines that meet at vertices (at the nodes of the graph). Some of the lines are straight, some of them are wiggly: this shape of each line
d... | 4 | [
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Analytical appendix for NIPA Chapter 3
I am now using Friday’s blog space to provide draft versions of the Modern Monetary Theory textbook that I am writing with my colleague and friend Randy Wray. We expect to publish the text sometime
in 2013. Our (very incomplete) textbook home page – Modern Monetary Theory and Pra... | 5 | [
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The population genetics of cooperative gene regulation
Abstract
Background
Changes in gene regulatory networks drive the evolution of phenotypic diversity both within and between species. Rewiring of transcriptional networks is achieved either by changes to transcription
factor binding sites or by changes to the phys... | 4 | [
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Newest 'real-analysis na.numerical-analysis' Questions
For example, the cookie cutter maps, say $T:I_1 \cup I_2 \subset [0,1] \to [0,1] $ is a $C^2$ map such that $|T'|>1$ and provided $I_1$ and $I_2$ are disjoint closed intervals and $T(I_i)=[0,1]$. ...
The $n$th Gauss-Laguerre quadrature aims to approximate ... | 4 | [
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Chapter 7. Polynomial-Time Computability
Polynomial-Time Computability 149 Next, we want to define EXPTIME and EXPSPACE. A language L belongs to EXPTIME if there is a program and a polynomial p such that the program computes the
characteristic function of L at each word x in at most 2 p(|x|) steps. And a language L bel... | 4 | [
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er
Math Goodies is a free math help portal for students, teachers, and parents.
Home | About Us | Contact Us | Privacy |... | 4 | [
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Emily rows six miles downstream in 1 hour and her friend Ashley, rowing 1 mile per hour faster completes the return... - Homework Help - eNotes.com
Emily rows six miles downstream in 1 hour and her friend Ashley, rowing 1 mile per hour faster completes the return trip in 2 hours.
Find the speed of the current (c) and ... | 4 | [
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isomorphismes
Reversing a sha1sum resembles reversing a pie. Even if you know how much eggs has the baker put in it the best you can do is trying to bake exactly the same pie
(not over ℝ just the domain you see = 0<x<1⊂ℝ)
What does it mean when mathematicians talk about a bijection or homomorphism?
Imagine you want ... | 5 | [
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Functions of several variables
From Intelligent Perception
1 Introduction
We will study scalar-valued functions $f: {\bf R}^n {\rightarrow} {\bf R},$ which map vectors onto numbers (scalars). One the surface, the set-up may appear similar to the one of parametric curves
$f: {\bf R} {\rightarrow} {\bf R}^n$, but the ... | 5 | [
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CHemistry....Please double check DrBobb
Posted by Saira on Saturday, January 24, 2009 at 1:06pm.
What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23C? Assume density for water
is exactly 1g/mL.
First... | 4 | [
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Exams
Old Chemistry 142 Second Hour Exams
Return to SYLLABUS
Questions found on previous Second Hour Exams; the answers are in curly brackets.
D stands for delta; for example, DH represents delta H.
1(15)- When the temperature is incr... | 5 | [
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Book review of The Higher Infinite, Akihiro Kanamori
• J. D. Hamkins, “Book review of The Higher Infinite, Akihiro Kanamori,” Studia logica, vol. 65, iss. 3, pp. 443-446, 2000.
@ARTICLE{Hamkins2000:BookReviewKanamori,
AUTHOR = "Joel David Hamkins",
TITLE = "book review of {The Higher Infinite, Akihiro K... | 4 | [
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Double check
December 3rd 2008, 03:16 PM #1
Junior Member
Joined
Sep 2008
Posts
71
Double check
I just need a double check with my problems about point slope the one with the forumula like y-y1=m(x-x1)
(6,-4), (3,5) answer y=1x+8
(2,7), (1,-4) answer y=11x-43
(-5,13), (-10,9) I got -4/5x+1
... | 4 | [
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Math Forum: Ask Dr. Math FAQ: Trachtenberg Speed System
The Trachtenberg Speed System of Basic Mathematics
This constitutes a system of performing high-speed multiplication, division, addition, subtraction, and square root, all in one's head. The details are given in this reference:
Ann Cutler and Rudolph McShane... | 4 | [
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DC Coupled Amplifiers for Audio
2.1 THE DIFFERENTIAL AMPLIFIER STAGE
2.3.1 Differential input stage
3.1 TRANSCONDUCTANCE INPUT STAGE
3.2 TRANSRESISTOR INTERMEDIATE STAGE
1. INTRODUCTION
We will here look at DC coupled amplifiers. ... | 4 | [
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