Simulation of a pendulum

Objective: Solving the ODE of a pendulum The swinging of a simple pendulum under the influence of gravity can be described by the following ODE: `( δ^2 θ)/(δt^2 )+b/m (δθ)/(δt)+g/l sinθ=0` Where, Second order term, Acceleration (radians/s^2) `( δ^2 θ)/(δt^2 )` First order…