Black Friday and Cyber Monday aren't always the best times to buy certain items.

For the first time, an infographic showing what programmers do from waking up and going to sleep!

I still use Mozy and Acronis for my online/offline backup needs.

abs(x) - (1-x^2)^(1/2), abs(x) + (1-x^2)^(1/2), x+ 0.25 from -3 to 3