?Thank you for help. I did look into the source but the comment on line 245 about Box-Muller confused me. Just wanted to be sure if it is really Ziggurat now. ________________________________ Von: Boost-users <boost-users-bounces@lists.boost.org> im Auftrag von Tim Song <t.canens.cpp@gmail.com> Gesendet: Donnerstag, 11. Juni 2015 05:00 An: boost-users@lists.boost.org Betreff: Re: [Boost-users] Boost Random Numbers: Normal Distribution On Wed, Jun 10, 2015 at 11:59 AM, Hadidi, Lars <lhadidi@students.uni-mainz.de<mailto:lhadidi@students.uni-mainz.de>> wrote: I'd like to know which method is employed here. Have you tried reading the implementation (http://www.boost.org/doc/libs/1_58_0/boost/random/normal_distribution.hpp)? Hint: The first comment after the includes is // tables for the ziggurat algorithm