one of the most beautiful techniques
13:09
a heroic use of the complex numbers
26:51
New divisibility rule! (30,000 of them)
25:06
What is the i really doing in Schrödinger's equation?
11:39
a very cool "recursive" differential equation
13:33
How To Calculate Any Square Root
13:58
a twist on a classic circle problem
30:31
Climbing past the complex numbers.
8:38