title plot can't be shown + grid
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Faisal Al-Wazir
le 28 Oct 2022
Réponse apportée : Star Strider
le 28 Oct 2022
i'm trying to plot unit step function but i can't use the title function and grid for some reason
clc
clear
u = @(t) double(t>=0);
h = @(t) u(t+1)*(t+1)-u(t)*(3/2)*(t)+u(t-2)*0.5*(t-2);
p= @(t) h(2*t)
p1= @(t) h(0.5*t)
p2= @(t) h(t-1)
p3= @(t) h(2-t*0.5)
subplot(2,3,1)
grid on
title('x')
fplot(h,[-5,5])
ylim([-2 4])
subplot(2,3,1)
fplot(h,[-5,5])
ylim([-2 4])
subplot(2,3,2)
title('x')
fplot(p,[-5,5])
ylim([-2 4])
subplot(2,3,3)
title('x')
fplot(p1,[-5,5])
ylim([-2 4])
subplot(2,3,4)
title('x')
fplot(p2,[-5,5])
ylim([-2 4])
subplot(2,3,5)
title('x')
fplot(p3,[-5,5])
ylim([-2 4])
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Réponse acceptée
Star Strider
le 28 Oct 2022
The title and grid functions do not apply until the axes are created. Also, there are two ‘subplot(2,3,1)’ creations, the second overwrites the first. (I added the subplot numbers to the title calls for clarity. Edit those out those later.)
Try this —
% clc
% clear
u = @(t) double(t>=0);
h = @(t) u(t+1).*(t+1)-u(t).*(3/2).*(t)+u(t-2).*0.5.*(t-2);
p= @(t) h(2*t);
p1= @(t) h(0.5*t);
p2= @(t) h(t-1);
p3= @(t) h(2-t*0.5);
figure
subplot(2,3,1)
fplot(h,[-5,5])
grid
title('x 231')
ylim([-2 4])
% subplot(2,3,1)
% fplot(h,[-5,5])
% ylim([-2 4])
subplot(2,3,2)
fplot(p,[-5,5])
title('x 232')
ylim([-2 4])
subplot(2,3,3)
fplot(p1,[-5,5])
title('x 233')
ylim([-2 4])
subplot(2,3,4)
fplot(p2,[-5,5])
title('x 234')
ylim([-2 4])
subplot(2,3,5)
fplot(p3,[-5,5])
title('x 235')
ylim([-2 4])
.
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