16:14

This integral looks crazy

18:17

I really like this integral

13:24

An interesting infinite sum

13:21

Can you guess the trick for this integral?

9:11

Proving with Sequents

21:23

a nice result from Ramanujan's "lost notebook"

3:06:58

O melhor do piano clássico: Mozart, Bach, Chopin, Debussy, Liszt, Beethoven...

22:28

so you want a HARD integral from the Berkeley Math Tournament