"hello world"
article in
Personal
quotes
All I know is...
I know one thing: that I know nothing.
I know that I know nothing.
--Socratic paradox
Created: 2005-05-26 06:50:13 Modified: 2014-03-24 04:55:28
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Visible Dave Project
$$\cos x = \sum\limits_{n = 0}^\infty {\frac{{\left( { - 1} \right)^n x^{2n} }}{{\left( {2n} \right)!}}}$$