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biss committed 2025-11-26 19:01:27 +08:00
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commit cfab7130bd
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x=linspace(-2*pi,2*pi,21);
y=linspace(-1.5*pi,1.5*pi,31);
[xx,yy]=meshgrid(x,y);
zz=sin(xx/2).*cos(yy);
subplot(1,2,1)
surf(xx,yy,zz);axis image;
subplot(1,2,2)
contour(xx,yy,zz);axis image;
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