ODE Solver in MATLAB

Objective: clear all close all clc %Step1: Declaring the input variables b = 0.05; %damping coefficient g = 9.81; %Acceleration due to gravity l = 1; %Length of the string m = 1; %Mass of the pendulum bob %Step2: Defining the initial condition and time span %intial condition theta_0 = [0;3]; %time points t_span = linspace(0,20,500);…