Mathematics
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All Questions Answers
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question
41
Can $\sqrt{n} + \sqrt{m}$ be rational if neither $n,m$ are perfect squares?
Aug 1, 2013
question
24
Probability distribution in the coupon collector's problem
May 2, 2013
answer
24
$\cos(x)+\cos(x\sqrt{2})$ is not periodic
May 13, 2013
question
22
"A two-envelopes puzzle"
May 15, 2017
question
20
Maximum likelihood estimation of $a,b$ for a uniform distribution on $[a,b]$
Jun 4, 2013
question
16
Understanding the Fokker-Planck equation for non-stationary processes
May 22, 2017
answer
15
Proving $\frac{x}{y} +\frac{y}{z} + \frac{z}{x} \ge 3$ for positive $x,y,z$
May 4, 2013
question
13
Deriving Maclaurin series for $\frac{\arcsin x}{\sqrt{1-x^2}}$.
Nov 2, 2013
question
10
Integrating $\int_0^\infty \frac{1-\cos x }{x^2}dx$ via contour integral.
Dec 5, 2013
question
9
For how many $n \in \mathbb{N}$ is $\sqrt{n^2+2379}$ natural?
Aug 1, 2013
Top network posts
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68
Why is the harmonic oscillator so important?
28
What's the intuition behind the Choi-Jamiolkowski isomorphism?
11
(Canonical) Partition function - what assumption is at work here?
9
Angular momentum for 3D harmonic oscillator in two different bases
8
What is the deal with heat capacity?

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