11:52

Padé Approximations Example

24:23

Extra Integration Techniques Problems

16:04

I solved this two ways -- which do you prefer??

18:47

a nice floor problem from the IMO long list.

19:32

Some geometry behind the Basel problem

12:33

what a nice Diophantine equation.

20:55

DESTROYING a Digamma Integral

22:39

Have you ever seen this definition of Euler's constant??