3D Grapher
Coordinates: Cartesian
Functions: a(u,v,t): u*cos(t)+u*sin(t)+5*v*cos(v)
R(u,v,t): 2*tan(v)+cos(u)
Z(u,v,t): 9*v
Domain of variables:
Min U: -15 Max U: 18 Steps: 350
Min V: -7 Max V: 19 Steps: 200