如题所述
[x,y,z]=meshgrid(linspace(-1,1));isosurface(x,y,z,x.^2+y.^2+z.^4,1);axis equal
[x,y,z]=meshgrid(linspace(-1,1));
isosurface(x,y,z,x.^2+y.^2+z.^4,1);
axis equal