Simulating the transient behaviour of a simple pendulum

Objective: Main code: %Program to simulate behaviour of a simple pendulum clear all close all clc %inputs b = 0.05; g = 9.81; l = 1; m = 0.1; theta_0 = [0;3]; t_span = linspace(0,20,500); %Using ODE solver ode45 [t,results] = ode45(@(t,theta) ode_func(theta,t,b,g,l,m),t_span,theta_0); %Plotting for i=1:500 thetai = results(i,1) x_cord…