# Matlab: what is the right 3D plotting function for my code?

1. Apr 22, 2013

### Romik

Hi all, I have a simple question about 3D plotting.

Consider this simple loop, which provides y and O for any x. and I am able to plot y vs O for given x.

for Omega=0:.01:5

y(i)=(x*Omega^2);

O(i)=Omega;

i=i+1;

end

now consider I want to change the value of x, for x=0:.1:3 and plot the group of y's and O's in one plot.(y~O~x) which one of the 3D plot functions are right for this purpose and what will be the code?

I would appreciate you time and help,

Romik

2. Apr 24, 2013

### jhae2.718

You'll probably want to use meshgrid and surf. Something like:
Code (Text):

x = [color=#008000]linspace[/color](0, 3, 100);
omega = [color=#008000]linspace[/color](0, 5, 100);
[X Omega] = [color=#008000]meshgrid[/color](x, omega);
Y = X [color=#666666].*[/color] Omega [color=#666666].^[/color]2;
surf(X, Y, Omega); [color=#408080][i]% Or whatever order you want to plot...[/i][/color]

Last edited: Apr 24, 2013