3D Grapher
cylindrical
1.x=sin(u)*v ; y=cos(v)*u ; z=u*v
min u=-3 ; max u=3
min v=-3 ; max v=3
steps : 100
2.x=u*2*sin(v)
y=2*cos(v)*2*sin(u)
z=u*v*3
min u=-4 ; max u=4
min v=-4 ; max v=4
steps 150
3. x=sin(u)*cos(v)
y=2*cos(v)*2sin(u)
z=u*v*3
min u=5 ; max u=5
min v=-5 ; max v=5
steps 120
![](https://elearning.rcub.bg.ac.rs/moodle/pluginfile.php/28689/mod_forum/attachment/31820/povrsi%20u%20prostoru.jpg)