hello, can i calculate a sum to infinity in R. i want to do something like this:
\sum_{i=0}^\infty \frac{2^{-d-1}}{\Gamma(\frac{d-1}{2})}\left(\frac{\Gamma(2d-3)(2-d)_{i}\Gamma(i+1,-z/2)2^{i+1}}{\Gamma(d-1)(4-2d)_{i}i!}\right)+ \\ \sum_{i=0}^\infty \frac{2^{-d-1}}{\Gamma(\frac{d-1}{2})}\left(\frac{\Gamma(3-2d)(d-1)_{i}\Gamma(2d-2+i,-z/2)2^{2d-2+i}}{\Gamma(2-d)(2d-2)_{i}}\right), where (a)_{i}=\Gamma(a+i) / \Gamma(a) . I hope someone can help me. Tuggi -- View this message in context: http://r.789695.n4.nabble.com/sum-to-infinity-tp2537122p2537122.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.