a)
cos(u)*sin(v)
(cos(v)+log(tan(1/5*v)))
sin(u)*sin(v)
3<=u<=3*pi
0.03<=v<=3
rotacija oko Y-ose
b)
x=sin(u)
y=1
z=cos(u)
0<=u<=6*pi
x=sin(v)
y=v-cos(v)
z=1
0<=v<=6*pi
