

This video will forever change the way that you view irrational numbers. It is so bad that it approaches the sublime!
Watch Badri Narayanan perform lightning calculations without the aid of a calculator!
This looks like an incredible memory feat, but is actually a simple mathematical feat you can do yourself!
Fellow math and magic fan Persi Diaconis combines his interests in this lecture. He performs a simple magic effect in which a deck of cards is cut, and then 5 people each take a card. He is then able to identify them without looking at their faces.
"I am a mathematician, and I would like to stand on your roof." This is how Ron Eglash greeted many African families while researching the intriguing fractal patterns he noticed in villages across the continent. He talks about his work exploring the rigorous fractal math underpinning African architecture, art and even hair braiding.
In a lively show, "mathemagician" Arthur Benjamin races a team of calculators to figure out 3-digit squares, performs a massive mental calculation, and guesses a few birth days. How does he do it? He'll tell you.
amazing trick showing how to print digits 1 to 9 in a series on calc using only key 1