Double Pendulum: Analytically Finding Resonance Frequencies with Sympy

In this video we consider the double pendulum driven by a motor at the top. The resonance frequencies of the double pendulum are difficult to solve for by hand: here we use sympy, along with some approximation, to solve for the resonance frequencies. We then numerically confirm that they exist. All code can be found here: https://github.com/lukepolson/youtube...