The MPFR library was developed by the PolKA project at INRIA Lorraine and LORIA. Authors and contributors are: Sylvie Boldo wrote the agm and log routines Guillaume Hanrot wrote part of the library Emmanuel Jeandel wrote the hypergeometric code Vincent Lefe`vre contributed many test cases for elementary functions Thom Mulders contributed the short multiplication code Fabrice Rouillier helped a lot for testing and porting Jean-Luc Re'my wrote a prototype of the Zeta function Paul Zimmermann wrote part of the library All the authors are included in the MPFR mailing-list . This is the preferred way to contact us. For further information, please look at the MPFR web page .