Rosetta Code

From the front page blurb: "Rosetta Code is a programming chrestomathy site. The idea is to present solutions to the same task in as many different languages as possible, to demonstrate how languages are similar and different, and to aid a person with a grounding in one approach to a problem in learning another."

The link address is:

Bahman Movaqar
Bahman Movaqar says:
Jan 07, 2013 02:39 PM

Good one.
Though not a maths fan, this one seems good too: