www.gusucode.com > 关于海航matlab和lingo的训练题 > 空间曲面???.m
[x,y]=meshgrid([-2:.1:2]); z=x.^2+y.^2 surf(x,y,z); %画网格曲面????? x=[-2:0.1:2] y=[2:0.1:4] meshgrid(x,y); x=0:0.1:6; plot(x,sin(x),'.') figure,plot(x,sin(x),'.')