simulation of simple pendulum

Objective: clear all close all clc b = 0.05; g = 9.81; l = 1; m = 1; % intial condition in form of [velocity;displacement] theta_0 = [0,3]; % time points t_span = linspace(0,20,200); % sOLVE ODE(THIS SHOULD HAVE TO REMEMBER) [t,results] = ode45(@(t,theta) ode_func(t,theta,b,g,l,m),t_span,theta_0); figure(1) hold on plot(t,results(:,1),\'color\',\'b\');…