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fiktor
  • Member for 15 years, 5 months
  • Last seen more than a month ago
  • St. Petersburg, Russia
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86
Prove that $\prod_{k=1}^{n-1}\sin\frac{k \pi}{n} = \frac{n}{2^{n-1}}$
60
Is there any way to generate custom errors/warnings in LaTeX?
49
How to typeset subscript in usual text mode?
36
How to find a package name by a command name?
33
Fundamental group of GL(n,C) is isomorphic to Z. How to learn to prove facts like this?