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biss
2025-11-17 11:16:02 +08:00
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commit 1b3b07a7f6
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lab3/exercise3_4.m Normal file
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subplot(2,2,2);
x=-pi/2:pi/10:pi/2;
y=sqrt(cos(x));
plot(x,y);
subplot(2,2,3);
x=-2:0.1:2;
y=-4:0.1:4;
[x,y]=meshgrid(x,y);
z=x.^2/4+y.^2/16;
surf(x,y,z)