A deceivingly difficult differential equation.
21:26
a very interesting differential equation
16:52
A deceivingly difficult differential equation
15:34
One of the coolest functional equations I have seen!
13:46
Non-linear differential equations have strange solutions!
13:50
One of the most beautiful and powerful tools in mathematics!
10:03
A "non-elementary" differential equation.
18:15
an absolutely surprising final solution to this functional equation.
26:43