a. Sinus
x= f(u)= sin(1*u)*cos(u)*3sin(1*u)*3
y= g(u)= 1*u*sin(1*u)*cos(u)
z= h(u)= cos(u)*cos(u)*2
1<= u <= 3*pi
Rotacija oko y ose
b. Sinus
x= f(u)= 2*sin(2*u)+sin(4*u)
y= g(u)= sin(u)*4
z= h(u)= 2*u
0<= u <=3*pi
x= f(v)= sin(v)*3
y= g(v)= 1+3*sin(v)/5
z= g(v)= 1*v
0<= v <=3*pi
