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!
9:21
An interesting differential equation from @MichaelPennMath
13:50
One of the most beautiful and powerful tools in mathematics!
13:46
Non-linear differential equations have strange solutions!
31:10
the geometry of the third derivative
14:15