the craziest of differential equations!
13:38
what a great "double" functional equation!
31:10
the geometry of the third derivative
11:56
an exceedingly interesting differential equation
21:16
The most interesting differential equation you have seen.
7:40
Fundamental Theorem of Calculus (Proof Sketch)
21:25
one of the most beautiful techniques
23:03
the parabolic trig functions
21:26