/usr/share/doc/gap-guava/README.ctjhai is in gap-guava 3.13+ds-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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1. The author is not liable for any damage on your side caused
as a result of using this program. Use it at your own risk.
2. This code is provided as is. Bugs may be reported to the
author (ctjhai@plymouth.ac.uk), but bear in mind that the
author has no duty to remedy for the deficiencies of the
program.
3. Contributions towards this program are greatly appreciated,
especially in making this code faster (optimisation). When
you have changed the program, or implemented the program for
other OS or environment, it would be grateful if you could
specify the part you have changed.
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This directory contains the source code for computing the minimum
Hamming weight of linear codes over GF(2) and GF(3). The executable
minimum-weight is called within GUAVA by the MinimumWeight function.
This code is known to run in the following platforms:
o X11 under Mac OS X (PowerPC) - 32 bit machine
o Windows XP running Cygwin - 32 bit machine
o Linux 2.6 - 32 bit machine
o Linux 2.6 - 64 bit machine
You can also use this executable without having to launch GUAVA.
This code expects a generator matrix as an input and the format of
the matrix may be easily explained with this example.
6 12 3
1 0 2 1 2 2 0 0 0 0 0 1
0 1 0 2 1 2 2 0 0 0 0 1
0 0 1 0 2 1 2 2 0 0 0 1
0 0 0 1 0 2 1 2 2 0 0 1
0 0 0 0 1 0 2 1 2 2 0 1
0 0 0 0 0 1 0 2 1 2 2 1
The above example is the generator matrix of a code of length 12
and dimension 6 over GF(3). To compute the minimum Hamming weight
of the code above, you can use the following command:
minimum-weight GeneratorMatrix.File
where GeneratorMatrix.File contains the generator matrix described
above. For further information on the other parameters, run
minimum-weight --help
To produce the executable, refer to the Makefile in GUAVA's main
directory.
CJ, Tjhai
email: ctjhai@plymouth.ac.uk
Homepage: www.plymouth.ac.uk/staff/ctjhai
18 March 2008
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