3D surface (sine wave)

Hello, How can I create 3D surface (sine wave)and plote it? Thank you very much

Answer 1

[Kye Taylor]

One possibility is to use the following:

k1 = 1; %how many times you want wave to oscillate in x-dir
k2 = 0; %how many times you want wave to oscillate in y-dir

[X,Y] = meshgrid(linspace(-pi,pi));

Z = cos(k1*X).*cos(k2*Y);

Change k1 and k2 for fun.

Answer 2

[Gnaneswar Nadh satapathi]

x=-15:0.5:15; y=-15:0.5:15; [X,Y] = meshgrid(x,y); % greate rectangullar mesh R=sqrt(X.^2+Y.^2); %rasius k=1; % wave vector phi=0; % phase Z=sin(k*R+phi); surf(X,Y,Z); axis equal;

Answer 3

[Sean de Wolski]

I'm not really clear on what you want:

This:

surf(bsxfun(@(x,y)sin(x)+sin(y),-pi:0.1:pi,(-pi:0.1:pi)'))

or this:

surf(sin(repmat(-pi:0.1:pi,100,1)))

or maybe this?

surf(bsxfun(@(x,y)sin(x)+y,-pi:0.1:pi,(-pi:0.1:pi)'))

Please clarify your question if you want more detail.