exm050302.m

matlab电子书籍

clf
x=-4:4;y=x;				
[X,Y]=meshgrid(x,y);	
Z=X.^2+Y.^2;				
surf(X,Y,Z);				
colormap(hot)				
hold on
stem3(X,Y,Z,'bo')		
hold off
xlabel('x'),ylabel('y'),zlabel('z')
axis([-5,5,-5,5,0,inf])	
view([-84,21])