exm063_5.m

matlab的初级教程

%exm063_5.m

clear
clf,
x=[-8:0.2:8];
y=x;
[X,Y]=meshgrid(x,y);
ZZ=X.^2-Y.^2;
ii=find(abs(X)>6|abs(Y)>6);	%确定超出[-6,6]范围的格点下标
ZZ(ii)=zeros(size(ii));			%强制为0
surf(X,Y,ZZ),
shading interp;
colormap(copper)
light('position',[0,-15,1]);
lighting phong
material([0.8,0.8,0.5,10,0.5])  
shg