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Mathematics
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swish
  • Member for 13 years, 7 months
  • Last seen more than a month ago
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You Should Do The Matasano Crypto Challenges. I did and they are awesome.

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Top posts

34
How to put 9 pigs into 4 pens so that there are an odd number of pigs in each pen?
Nov 7, 2013
14
Minimum number of steps needed to solve a rubik cube
Jan 4, 2013
13
How to represent the floor function using mathematical notation?
May 12, 2013
9
What are some examples of notation that really improved mathematics?
Nov 7, 2013
3
using numbers 1 to 9 only once to equal 1 million
Oct 1, 2012
2
difficulty working out equation $\int_{-a}^{a}2(\sqrt{a^2-x^2})dx $ =$\left.2[\frac{1}{2}\sqrt{a^2-x^2}+a^2\arcsin(\frac{x}{a})]\right|_{-a}^{a}$
Oct 1, 2012
2
7th class question my daughter asked and need answer if possible
Mar 17, 2013
1
Choosing pairs of numbers with distinct bounded sum
Jun 2, 2016
1
Change of variables in Belousov-Zhabotinsky reaction
Dec 15, 2012
0
Is there known generating function having this form: $\sum\frac{m-(i_1 + \ldots + i_k)}{i_1! \ldots i_k!} x_1^{i_1}\ldots x_k^{i_k}$?
Sep 26, 2019

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