Matlab version 7.5 (R2007b)
Files for setting this up without compilation are found in the
matlab directory. Specifically, you need to download 4 files,
two that are machine independent
and two that depend on your Matlab version (try the one that is most recent version before the one you have) and machine architecture:
 Matlab version 7.4 (R2007a)
 Matlab version 6.5
Save the mex interface (above 4 files) to a place on your MATLAB path
e.g. on a PC: c:\matlabXXXX\toolbox\local\*
or to your current working directory.
For small problems you should be ready to go.
To solve large problems, the LICENSE string needs to be set up
annually as indicated above.
The file
README
gives more information.
Currently only provided on MacOSX, Linux and Windows platforms.
Source for the matlab link, complete with makefiles, etc can be found
in the
pathlib.zip archive (see below).
Gams interface:
You can download the complete student version of
GAMS
for a number of different computing platforms.
Each one includes a version of PATH.
Library version:
The interfaces for this, and the source for the matlab installation
can be found in the
This archive contains further information on how to proceed.
Further information and examples may be found at the following ftp
directories:

standalone_c directory

standalone_f directory

ampl directory
AMPL version:
The "pathampl" executable is provided at this
ftp site
for a variety of machine architectures (windows (win), linux (lnx), mac (osx)). To use this solver within ampl, you need to install ampl (!) and put the appropriate pathampl executable in a directory on your path.
To run on a model (that is contained for example in example.mod), you should do the following:
option solver pathampl;
option path_options "logfile = path.log optfile=path.opt";
option presolve 0;
model example.mod;
solve;
The path options above are entirely optional. The ampl presolve should be turned off "option presolve 0;" since the pathampl presolver understands complementarity presolving better. The file path.opt contains further options for the path solver, some details of which are given below.
Further Information:
The files here are documented in the paper
"Interfaces to PATH 3.0: Design, Implementation and Usage"
by Michael C. Ferris and Todd S. Munson.
Some Options for Path
are described in this pdf file.
If you have difficulties, please contact
Michael Ferris by email at ferris@cs.wisc.edu