[general]
name = Toupie;
comments = Toupie surface (spinning top);
a1_min = -1;
a1_max = 1;
a1_steps = 40;
a2_min = 0; 
a2_max = 360;
a2_steps = 40;


[formula]
X = sqr(abs(A1)-1) * cos(A2);
Y = A1;
Z = sqr(abs(A1)-1) * sin(A2);