3D surface (sine wave)

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simira atraqi
simira atraqi 2012-3-28
回答： Gnaneswar Nadh satapathi 2015-2-1
Hello, How can I create 3D surface (sine wave)and plote it? Thank you very much

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Kye Taylor
Kye Taylor 2012-3-28
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.

更多回答（2 个）

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;
Sean de Wolski
Sean de Wolski 2012-3-28
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.

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