e is irrational -- the best proof!!
14:35
the famous Calculus proof of the Pythagorean theorem.
14:49
Erdos' irrational numbers
23:20
Pi is IRRATIONAL: animation of a gorgeous proof
18:13
cos within log within log -- an integration spectacular!
16:29
A proof that e is irrational - Numberphile
22:39
Have you ever seen this definition of Euler's constant??
17:01
this limit has a dangerous solution!!
18:58