can anyone recognize and give the name of the algorithm used in this snippet?

nooj
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August 20, 2009 5:10 PM PDT
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#2 Reply to #1
tom_p: What you said is correct; this code is known to be accurate and inefficient.

I have found a reference:

It can be shown to be a variant of Nanson's formula ( nda = JF^(-T)NdA ),
and is found in the section "Area of a Curved Surface" on pp 142--144 of
M.D. Greenberg's _Foundations of Applied Mathematics_, Prentice-Hall, 1978.
See in particular formulas (8.45a), (8.45b), and (8.48) on p 143.

Thanks to everyone who pondered this with me!

- Nooj

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