An approximation of a catenoid constructed from piecewise truncated   conical minimal surfaces
  We consider an appoximation of a catenoid constructed from "odd" truncated cones that maintains minimality in a certain sense. Thorough this procedure, we obtain a discrete curve approximating a catenary by exploiting the fact that it is the function that generates a catenoid. In this investigation, the theory of the Gauss hypergeomtric functions plays an important role. This work is a sequel to [Y.Machigashira, Piecewise truncated conical minimal surfaces and the Gauss hypergeometric functions, Journal of Math-for-Industry 4(2012), pp. 25-33 ]. The paper covers an appoximation of a catenoid constructed from "even" truncated cones that maintains minimality in the same sense.   Keywords: catenary, catenoid, truncated cone, hypergeomtric function, Chebyshev polynomial of the third kind. 
Akihito Ebisu and Yoshiroh Machigashira
math.DG math.CA