Minimal Surface Cross-Sections (2D)
Surface
Catenoid
Helicoid
Scale a
1.20
Pitch c
1.00
Cross-section
0
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Real cross-sections: the catenoid's meridian is the catenary r = a·cosh(v/a); the helicoid is a ruled surface, and each cross-section at fixed u is the straight line x = a·v, z = c·u.