小智~
clear all
clc
clf
grid on
f=inline('(x.^2+(9/4).*y.^2+z.^2-1).^3-x.^2.*z.^3-(9/80).*y.^2.*z.^3');
[x,y,z]=meshgrid(linspace(-3,3,200));
val=f(x,y,z);
[p,v]=isosurface(x,y,z,val,0);
patch('faces',p,'vertices',v,'facevertexcdata',cool(size(v,1)),'facecolor','w','edgecolor','flat');