- This project was started by Ayal Pinkus who remains the main author and the primary maintainer.
- made some modifications to the make file, and improved some math code.
- reported many bugs, made many suggestions for improvements, and
supplied improved code (yacas scripts and makefile code).
- Designed the second version of the Web site for Yacas.
- added 'Diverge' and 'Curl', and implemented threading for the
derivative operator (the gradient). Fixed GMP code.
- Win32 port, improved error reporting. Added
initial version of Karatsuba multiplication, and added some matrix functions
to the math library.
Daniel Richard G.
- added autoconf/automake scripts, made Sun/Sgi compilation
possible, created a rpm spec file, many many many changes to clean up
the source distribution.
- supplied patches to make Yacas work on Dec Alpha's.
- fixed some compiler errors on the newer gcc compiles. Reported some important bugs.
- reported an important bug in numeric calculations.
- added factorials over rationals, TeXForm, did a major overhaul
of the introduction manual (actually, he wrote large part of the manual
as it is), and initiated numerous
improvements and test code for Yacas, and implemented yacas_client.
Actually, Serge has been one of the larger contributors, and the
main force behind the improved documentation.
- reported some bugs, and improved some of the GnuPlot code. He also wrote
the yacas.el file, which allows you to run yacas from within emacs.
His most recent version can be found here
- maintains the Debian package for Yacas.
- set up the initial sourceforge CVS repository, and updated the Windows version
source code. He also greatly improved the logic theorem prover code.
- Helped build the BeOS version of Yacas. It can be found here
- built a fantastic Mac version of Yacas. It can be found here
- Added some code for fast calculation of roots of a cubic polynomial.
- Helped greatly in setting up the fltk-based graphicaluser interface,
and fixed some bugs relating to limits regarding infinity.
Robert V Schipper
- Ironed out a few bugs in Yacas.
- Debian package maintainer. Made a man page for Yacas.
- Made a much better Limit, and made Yacas behave better at infinity.
- Reported some bugs, helped improve various parts of Yacas, and
greatly improved the manual for Yacas.
Pablo Di Napoli
- Fixed the configure script so Yacas compiles under cygwin.
Joris van der Hoeven
- Helped with texmacs support.
Alberto González Palomo
- Implemented a console-mode version of Yacas for AgendaVR. Changed the
directory structure for the script files, and implemented initial
support for OpenMath.
- Helped improve the integration algorithm, and helped extend
the tests used for Yacas (finding numerous bugs).
- Started the body of statistics code.
- Brought a client-server structure to the EPOC32 version of Yacas.
- Added some linear algebra functions, and fixed some predicate functions.
- made the server code work on Windows.
- sent some patches regarding bugs relating
integration and differentiation.
- Supplied a Delphi interface to the Yacas DLL.
- Applied some bug fixes.
- Reported bugs and supplied improved code (determinants).
Roberto Colistete Junior
- Is maintaining a version of Yacas for SymbianOS.
- Reported bugs and supplied improved code for gcc 3.3.4
- created a port of Yacas that runs on PocketPC, to be found here .
- Married Euler to Yacas. Link here .
- Made many improvements to the C++ code to make it conform more to standard C++ coding
conventions (class interfaces looking more like stl), improved the regression test suite.
- Helped improve the ease of use of the Yacas web site.
- Gabor is the maintainer of Ryacas, and gave valuable feedback on the new web site.