a very cool problem with perfect squares.
18:24
just an average recursion...OR IS IT?
21:28
the wildest exponential equation I have ever seen!
21:25
one of the most beautiful techniques
17:21
an interesting result regarding Pythagorean triples...
26:45
Basel Problem and Beyond
24:28
Giriş grubu teorisi ile Euler formülü
14:23
is this trickier than it seems?
20:07