I want to make two plots in one figure in matlab of the linear and the nonlinear

Question

I want to make two plots in one figure in matlab of the linear and the nonlinear differential equation of the pendulum

clear; clc;

L = 2; g=32.17;

F=@(t,Y) [ Y(2) ; ...

                   -(g/L)*sin(Y(1))];

H=@(t,Y) [ Y(2) ; ...

                   -(g/L)*(Y(1))];

t0=0; tf=2; n=1000; h=(tf-t0)/n;

alpha = [ pi/6 ; 0 ];

[t,w] = midpoint(t0,h,n,alpha,F);

[t',w']

plot(t,w(1,:));grid on

function [t,w] = midpoint(t0,h,n,alpha,F)

w(1:2,1)=alpha; t(1)=t0;

for i=1:n

    K1 = F(t(i),w(1:2, i));  

    K2 = F(t(i)+0.5*h,w(1:2, i)+0.5*h*K1);

    w(1:2, i+1)=w(1:2, i)+(K2)*h;

    t(i+1)=t(i)+h;

end

end

Explanation / Answer

you can merge two plots in matlab by the following way- x = 0:0.1:10; y1 = %graph1% ; y2 = %graph2% ; figure subplot(2,1,1) % add first plot in 2 x 1 grid plot(x,y1) title('Subplot 1') subplot(2,1,2) % add second plot in 2 x 1 grid plot(x,y2,'+') % plot using + markers title('Subplot 2')

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