Modeling a Double Pendulum with Python and Sympy

Photo: Rhett Allain. Double Pendulum.

I’ll be honest. This is really just a big reminder for me. You see, I’m going to forget how to do this at some point in the future. So hopefully, when I do an internet search on the double pendulum I will find this post. Really, that makes this sort of like a time machine since I am communicating with the future. Hello, Future Rhett.

Simple Pendulum