MATLAB三维图像处理：加坐标轴等x=-3:0.02:3;y=-1:0.02:5;[x,y]=meshgrid(x,y);z=0.5*x.^2+0.5*(y+1).^2-log(y+1)-0.5;mesh(x,y,z)x=-3:0.02:3;y=-1:0.02:5;[x,y]=meshgrid(x,y);z=0.5*x.^2+0.5*(y+1).^2-log(y+1)-0.5;C=contour(x,y,z,40);clabel(C)1.怎
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