Gnu Mpc is a C library for the arithmetic of complex numbers with arbitrarily high precision and correct rounding of the result. It extends the principles of the IEEE-754 standard for fixed precision real floating point numbers to complex numbers, providing well-defined semantics for every operation. At the same time, speed of operation at high precision is a major design goal.
The library is built upon and follows the same principles as Gnu Mpfr. It is written by Andreas Enge, Mickaël Gastineau, Philippe Théveny and Paul Zimmermann and is distributed under the Gnu Lesser General Public License, either version 3 of the licence, or (at your option) any later version (LGPLv3+). The Gnu Mpc library has been registered in France by the Agence pour la Protection des Programmes on 2003-02-05 under the number IDDN FR 001 060029 000 R P 2003 000 10000.
Version 1.0.3, "Fagus silvatica", released in February 2015, comes with the following bug fixes:
The third Mpfr/Mpc developer meeting has been held in Nancy from January 20 to 22, 2014.