Trouble with 3D surface Plotting.

How can I set the z axis for this plot? It changes with every iteration regardless of what the axis function tells it to do.

clear all

clear

clc

x = linspace(0,2,30); %x data points

y = linspace(0,3,20); %y data points

[xgrid,ygrid] = meshgrid(x,y); %create grid of all x and y points

m=1;

n=1;

figure(3)

axis square

box on
grid on
t= linspace(0,5,50);

for k = 1:50

axis([0 2 0 3 -5 5])

animate = (576/(pi^6)).*((((1+((-1).^(m+1))).*(1+((-1).^(n+1))))/(m.^3.*n.^3)).*sin((m.*pi.*xgrid)/2).*sin((m.*pi.*ygrid)/3).*cos(pi.*t(k).*(sqrt(9.*(m.^2)+4.*(n.^2)))));
surf(xgrid,ygrid,animate);

pause(0.01);

colormap jet

box on

axis([0 2 0 3 -5 5])

end

Answer 1

[KSSV]

You limit the z-axes to certain limit. Imagine what would be the maximum and minimum limits of z and then limit it.

add:

   zlim([-3 3])

after surf in your code, now z is limited to 3 and -3. It will not change.

[Elitt Noguera]

You sir are a genius and I appreciate the help! Thank you!