User:Parrtech

Parrtech's user page on Wikipedia.com

This is an attempt at an internal link:
Sudoku

This is an attempt at a mathematical expression(?):
$1+1=2$


This is an attempt at a series, what kind of series?

$A_{n}={\frac {1}{\pi }}\displaystyle \int _{0}^{2\pi }\!f(x)\cos {nx}\,dx\qquad (n=0,1,2,\dots )$

And, more important is it a acceptable cut and paste(from a wikipedia article)?

user:Parrtech/Research some random topics I've been looking at

--Parrtech (talk) 13:36, 3 February 2009 (UTC)