DESCRIPTION 

In mathematics, in the fields of differential geometry and algebraic geometry, the Enneper surface is a surface that can be described parametrically by:  

PROCEDURE 

x = (u*cos(v)-u^(2* a -1)/(2*a -1)*cos((2*a -1)*v))*10  
y = (-u*sin(v)-u^(2* a -1)/(2* a -1)*sin((2* a -1)*v))*10  
z = (2/ a *u^ a *cos(a *v))*10