On 03/11/2017 12:40 PM, Benedikt Vitecek wrote: >> Concerning Gamma, the main reason I haven't implemented it yet is that >> it requires determining some magic constants that were only given to me >> for a lower precision than what I need (10 digits instead of 16). > > For the Gamma function the book > > „Numerical Recipes: The art of Scientific Computing“ (3rd edition); > William H. Press, Saul A. Teukolsky, William T. Vetterling, Brian P. > Flannery; > Cambridge University Press > > might be of interest as it describes the implementation of a Gamma > function with error smaller than < 1e-15. > > Ben Thanks for the precise literature pointer; the book is available in my library (and I found the specific pages on Google books in any case). I'll look into it. Best, Bruno