Release 2.4.85 of PHCpack

Below are the sources and some binary versions of the program. PHCpack was originally designed to implement the development of polynomial homotopies exploiting structure in order to better approximate all isolated solutions. The package also exports the numerical irreducible decomposition, and can compute all positive dimensional solution sets of a system.

PHCpack is open source and free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 3 of the License.

The most recent version of the source code is at github. Also executable versions of the program are available from that site. Release 2.4.85 of PHCpack contains the following files:

(tarred and gzipped 23.1Mb) source code (and examples)
documentation: html and pdf
For executable versions of the program, see the assets in the github releases.
- (tarred and gzipped 5.5 Mb) Database with demo systems
interfaces to PHCpack
There are interfaces for Python (based on the C interface), Maple, MATLAB (or Octave), SageMath, and Macaulay2.
- If you are familiar with python, then phcpy may be just right for you.
  The pdf of the documentation is here.
- An interface with Maple is PHCmaple, developed in collaboration with Anton Leykin, archived at github.
- Another interface to PHCpack is described by Yun Guan and Jan Verschelde: PHClab: A MATLAB/Octave interface to PHCpack. Download version 1.0.4 (12 September 2014) of PHClab here. Take a look at the Poster.
- Thanks to the efforts of Marshall Hampton, Kathy Piret, and William Stein, PHCpack is one of the experimental packages in SAGE .
- With Elizabeth Gross and Sonja Petrovic (with contributions from Anton Leykin), we developed an interface to Macaulay2: PHCpack.m2 and its documentation PHCpackDoc.m2, described in PHCpack in Macaulay2.
About the gnu-ada compiler GNAT
GNAT is a complete Ada compilation system, maintained and distributed freely, with sources, under the GNU Public Licence by Ada Core Technologies . ACT and ACT-Europe offer commercial support for industrial and academic users of GNAT.
To download free versions of the gnu-ada compiler:
Here is a cool site on Ada , and click here for The Big Online Book of Linux Ada Programming.
This material is based upon work supported by the National Science Foundation under Grants No. 9804846, 0105739, 0134611, 0410036, 0713018, 1115777, and 1440534. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Release 2.4.85 of PHCpack

interfaces to PHCpack

About the gnu-ada compiler GNAT