[Proj] Question for the math types

Gerald I. Evenden geraldi.evenden at gmail.com
Sun Sep 14 13:25:05 EDT 2008

Several projections are in the form f(phi,lam,t) where t is a third equation 
typically requiring Newton-Raphson for solution.

Question: what is the name of the function of t?

My initial reaction is to call it a parametric but I suspect that is not 
The whole religious complexion of the modern world is due
to the absence from Jerusalem of a lunatic asylum.
-- Havelock Ellis (1859-1939) British psychologist

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