+ + + =

Parametric 3D plot

example :

1. parametric3D( (x-n) ) 3D curve of polar plot of one variable with one parameter
   please change the n slider
2. parametric3D( x,sin(x-n)*n ) 3D curve plot of one variable with two parameters
   please change the n slider
3. parametric3D( sinh(u)*sin(v),sinh(u)*cos(v),10*n*v ) two variables with three parameters
   please change the n slider
4. parametric3D( u* cos(cos(u))* cos(v),u* cos(cos(u))* sin(v),u *sin(cos(u)) )
   please click the CUT checkbox
5. parametric3D( cos(u)*v,sin(v)*u ) two variables with two parameters
6. parametric surface 25 parametric equations
7. parametric surface 200 parametric equations