Simulation, Physics, Numerical Methods, Classical Mechanics, Computation.
-g*(2*m1 + m2)*np.sin(theta1) mass2 = -m2*g*np.sin(theta1 - 2*theta2) interaction = -2*np.sin(theta1 - theta2)*m2*np.cos(theta2_velocity**2*l2 + theta1_velocity**2*l1*np.cos(theta1 - theta2)) normalization = l1*(2*m1 + m2 - m2*np.cos(2*theta1 - 2*theta2)) theta1_ddot = (mass1 + mass2 +