Introduction

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.

News

Version 1.2.1, "Hyacinthus orientalis", released in October 2020, comes with the following new features:

• Bug fixes:
  • Fix an incompatibility problem with GMP 6.0 and before.
  • Fix an intermediate overflow in asin.

Version 1.2.0, "Hyacinthus orientalis", released in August 2020, comes with the following new features:

• Minimally required library version: mpfr 4.1.0
• New functions:
  • mpc_sum
  • mpc_dot
• Several functions are more robust with a reduced exponent range (for example corresponding to IEEE 754 binary formats).
• New mpcheck tool for comparison with the native C library

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