examp3_50.m

matlab的大量实例代码

[x,y]=meshgrid(-3:.6:3, -2:.4:2);
z=(x.^2-2*x).*exp(-x.^2-y.^2-x.*y);
mesh(x,y,z), axis([-3,3,-2,2,-0.7,1.5])

[x1,y1]=meshgrid(-3:.2:3, -2:.2:2);
z1=interp2(x,y,z,x1,y1); mesh(x1,y1,z1), axis([-3,3,-2,2,-0.7,1.5])

z1=interp2(x,y,z,x1,y1,'cubic'); z2=interp2(x,y,z,x1,y1,'spline');
mesh(x1,y1,z1), axis([-3,3,-2,2,-0.7,1.5])
figure; mesh(x1,y1,z2), axis([-3,3,-2,2,-0.7,1.5])