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Is it possible to find a close form(exact or approximate) for inverse of incomplete gamma function???

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See the "how to ask" page. You should at least give criteria for an approximation to be good enough, to avoid trivial answers. –  S. Carnahan May 25 '12 at 9:20
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closed as not a real question by Bill Johnson, David Roberts, Chandan Singh Dalawat, Michael Renardy, Vladimir Dotsenko May 25 '12 at 14:50

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1 Answer

In this paper the authors give what they claim is a good approximation. (the paper is: Inverse Incomplete Gamma Function and its Application Mischa Dohler, Marylin Arndt)

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