I am trying to combine plots to one graph for u, p and a. So i need three separate graphs in total but im having trouble combining the plots needed for each graph.

i am trying to make three separate graphs for u, p and a against t but im having trouble combining the graphs to make one figure (one for each)

this is my code

mi=2290000;

mf=130000;

tb=165;

t=linspace(0,165);

mr=mi-((mi-mf)*(t/tb));

g = 9.81;

Isp=263;

u=g.*(Isp.*log(mi./mr)-t);

p = cumtrapz(t,u);

hold all

a = gradient(t, u)

hold all

mi2=496200;

mf2=40100;

tb2=360;

t2=linspace(165,360);

mr2=mi2-((mi2-mf2)*(t2/tb2));

hold all

g = 9.81;

Isp=421;

u2=g.*(Isp.*log(mi./mr)-t2);

p2 = cumtrapz(t2,u2);

a2 = gradient(t2, u2)

f1=figure;

plot (t,u, 'red')

hold on

plot (t2,u2, 'red,---')

hold off

f2=figure;

plot(t,p,'blue')

hold on

plot(t2,p2,'blue,---')

hold off

f3=figure;

plot(t,a,'green')

hold on

plot(t2,a2,'green,---')

hold off

Answer 1

[Navya Seelam]

Hi,

When you are trying to plot u2, try the following

plot (t2,u2, '--r')

Similarly for p2 and a2

[Chukwunememma Uponi]

Thanks for the help!!