GAP - Groups, Algorithms and Programming
GAP is a system for computational discrete algebra, with
particular emphasis on Computational Group Theory. GAP provides a
programming language, a library of thousands of functions implementing
algebraic algorithms written in the GAP language as well as large data
libraries of algebraic objects. GAP is used in research and teaching for
studying groups and their representations, rings, vector spaces, algebras,
combinatorial structures, and more.
- -h, --help
- print this help and exit
- -b, --banner
- disable/enable the banner
- -q, --quiet
- enable/disable quiet mode
- -e
- disable/enable quitting on <ctr>-D
- -f
- force line editing
- -n
- prevent line editing
- -E,
--readline
- disable/enable use of readline library (if possible)
- -x, --width
- <num> set line width
- -y, --lines
- <num> set number of lines
- -g, --gasinfo
- show GASMAN messages (full/all/no garbage collections)
- -m,
--minworkspace
- <mem> set the initial workspace size
- -o,
--maxworkspace
- <mem> set workspace size where GAP will warn about excessive memory
usage (GAP may allocate more)
- -K, --limitworkspace
<mem>
- set maximal workspace size (GAP never allocates more)
- -s
- <mem> set the initially mapped virtual memory
- -a
- <mem> set amount to pre-malloc-ate postfix 'k' = *1024, 'm' =
*1024*1024, 'g' = *1024*1024*1024
- -l, --roots
- <paths> set the GAP root paths Directories are separated using ';'.
Putting ';' on the start/end of list appends directories to the end/start
of existing list of root paths
- -r
- disable/enable user GAP root dir GAPInfo.UserGapRoot
- -A
- disable/enable autoloading of suggested GAP packages
- -B
- <name> current architecture
- -D
- enable/disable debugging the loading of files
- -M
- disable/enable loading of compiled modules
- -N
- do not use hidden implications
- -O
- disable/enable loading of obsolete files
- -T,
--nobreakloop
- disable/enable break loop and error traceback
- --alwaystrace
- always print error traceback (overrides behaviour of -T)
- --quitonbreak
- quit GAP with non-zero return value instead of entering break loop
- -L
- <file> restore a saved workspace
- -R
- prevent restoring of workspace (ignoring -L)
- -p
- enable/disable package output mode
- --prof
- <file> Run ProfileLineByLine(<filename>) on GAP start
- --memprof
- <file> Run ProfileLineByLine(<filename>) with recordMem :=
true on GAP start
- --cover
- <file> Run CoverageLineByLine(<filename>) on GAP start
- --norepl
- Disable the GAP read-evaluate-print loop (REPL)
- --nointeract
- Start GAP in non-interactive mode (disable read-evaluate-print loop (REPL)
and\
- break loop)
- --bare
- Attempt to start GAP without even needed packages (developer tool)
- -c
- <expr> execute the given expression
- Boolean options toggle the current value each time they are called.
Default actions are indicated first.
The GAP Group <http://www.gap-system.org>
Copyright (1988--2020) by its authors.
GAP is 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; either version 2 of the License, or (at your option) any later
version.
gac(1) update-gap-workspace(1)
You can read the complete manual in /usr/share/gap/doc or you can
use the online help system. Type ?help inside GAP to access it. Type
?Reference: options!under UNIX
to access the full documentation of options.