Mathematics
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question
12
Show that $\mathbb{Z}_{2} \times \mathbb{Z}_{4}$ is not a cyclic group
Nov 3, 2013
question
11
If $f,g$ are continuous at $a$, show that $h(x)=\max\{f(x),g(x)\}$ and $k(x)=\min\{f(x),g(x)\}$ are also continuous at $a$
Feb 13, 2014
question
10
Ethical problems in mathematics
Feb 14, 2013
question
9
$M,N\in \Bbb R ^{n\times n}$, show that $e^{(M+N)} = e^{M}e^N$ given $MN=NM$
Nov 15, 2013
question
9
Parsing absolute value signs: Does $|x|x|x| =|x|\cdot x \cdot |x|$ or $ {\large|} x\cdot |x| \cdot x{ \large |}$?
Aug 20, 2021
question
8
Show that ${-n \choose i} = (-1)^i{n+i-1 \choose i} $
May 6, 2013
question
8
What is the intuition behind this question (Graph theory with applications, Bondy and Murty Q1.2.9)
Sep 3, 2018
question
7
$G(n) = 1 + \sum\limits_{ \substack{d|n\\d != 1\\d\neq n}}G(n /d)$, how to solve for $G(n)=n$.
Nov 21, 2017
question
7
Solve $u_{xx}-3u_{xt}-4u_{tt}=0$ where $u(x,0)=x^2$ and $u_t(x,0)=e^x$
Feb 17, 2013
question
7
Show $f''+vf' +\alpha^2 f(1-f)=0$ has solutions satisfying $\lim_{x \to - \infty}f=0$ and $\lim_{x \to \infty}f=1$ given $v\leq -2\alpha < 0$
Oct 22, 2013
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Using TikZ on math.stackexchange
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What formulas should I use to realistically model the diffusion of a drop of ink in a water?
6
What units do I use for energy in the Boltzmann distribution?
6
B-Spline patches on the tessellation shader. How to get the control points
5
changing formatting for section headers
5
Why does my strCopy implementation work?

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