3D Grapher
Coordinates: spherical
a(u,v,t):cos(v)^sin(v)
b(u,v,t): sin(u)*cos(v)
R(u,v,t): 2^cos(v)^2*sin(u)
Domain of variables
minU -2 maxU 2 steps 60
minV -2 maxV 2 steps 70
1.coordinates: cylindrical
a= 5*cos(u)*sin(v)