program: 3D Grapher
coordinates: spherical
function:a(u,v,t)=v*(sin(u))^4b(u,v,t)=u*(sin(v))^3R(u,v,t)=u^3+v^3domain of variables:min U: -1 max U: 2 steps:100min V: -2 max V: 1 steps: 100