[Proj] Question for the math types

support.mn at elisanet.fi support.mn at elisanet.fi
Sun Sep 14 22:21:47 EDT 2008

"Gerald I. Evenden" <geraldi.evenden at gmail.com> kirjoitti: 
> 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?

I am not a specialist in that area, but the following link?



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