3D Grapher
x=3*sin(u)*cos(v)
y=8*v*u+sin(10*u)
z=15*u
U=-4,9 Steps=200
V=-6,7 Steps=200
x=9*u*cos(u)*sin(v)
y=4*v*u+sin(2*u)*sin(u)
z= 3*sin(u)*cos(u)
U=-3,5 Steps:300
V=-5,5 Steps:300