Mike Marchywka <marchywka <at> hotmail.com> writes:
[snip] > > did you see my earlier post with link to wolfram integrator? Where i also > > requested anyone wanting to get rid of a copy of G&R Integral Tables to > > contact me off list since a dog really did eat mine? I think it came up > > with "F" or hypergeometrics. The denominator reduces to something like > > y*(a-y)^n depending on one choice of variables. Analytic of course is > > in the eye of the beholder but if you can get it in terms of known > > functions presumably you can find existing code to evaluate or > > even better known identities for manipulation. > > > > http://www.mail-archive.com/r-help <at> r-project.org/msg120242.html > > > > Yes; as I recall it came up with <http://reference.wolfram.com/mathematica/ref/Hypergeometric2F1.html> The gsl package has this function, apparently -- it agrees with Mathematica/Wolfram Alpha's Hypergeometric2F1 for a single set of inputs (2,3,4,0.5), although apparently the algorithm that GSL has only converges when |z|=1. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
