Re: Three-Dimension plot

[tmacchant]

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Reply

You forgot . operator before * operator.

(wrong)  z = (x - 1).^2 * (x - 2).^2 + (y - 1).^2;
(right)  z = (x - 1).^2 .* (x - 2).^2 + (y - 1).^2;

Try

x=linspace(0,3,51);
y=linspace(-1,3,51);
[x, y] = meshgrid(x, y);
z = (x - 1).^2 .* (x - 2).^2 + (y - 1).^2;
mesh(x, y, z);

Screenshot is attached.
<http://octave.1599824.n4.nabble.com/file/n4679754/test.png> 

Tatsuro




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