User:Parrtech

American History
Pilgrim (Plymouth Colony)

English Literature
A Christmas Carol

Alice's Adventures in Wonderland

Mathametics
$$1+1=2$$


 * $$A_{n}=\frac{1}{\pi}\displaystyle\int^{2 \pi}_0\! f(x) \cos{nx} \,dx\qquad (n=0,1,2, \dots)$$

Bookmark
"Bookmark -

A strip of material used to mark a place in a book."

Of Interest
Complexity classes

Was Of Interest
Portal:electronics

Always Of Interest
English grammar

Puzzles
Sudoku

Fantasy Writers
Hans Christian Andersen

Sand Box
user:Parrtech/Sandbox