Solving second order ODEs

Objective: clc clear all close all % Inputs b = 0.5; g = 9.81; % value of acceleration of gravity l = 1; % length in m m = 1; % mass in kg %% Solving the ODE % initial conditions theta_0 = [0;3]; % time points t_span = linspace(0,20,200); % solve ODE [t , results] = ode45(@(t,theta) ode_func(t,theta,b,g,l,m),t_span,theta_0); %% Animation…