GAP(1) Groups, Algorithms and Programming


gap [,OPTIONS/] [,FILES/]


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
disable/enable quitting on <ctr>-D
force line editing
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 hint for maximal workspace size (GAP may allocate more)
-K, --limitworkspace <mem>
set maximal workspace size (GAP never allocates more)
<mem> set the cache size value
<mem set the initially mapped virtual memory
<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
disable/enable user GAP root dir GAPInfo.UserGapRoot
disable/enable autoloading of suggested GAP packages
<name> current architecture
enable/disable debugging the loading of files
disable/enable loading of compiled modules
unused, for backward compatibility only
disable/enable loading of obsolete files
enable/disable CRC checking for compiled modules
disable/enable break loop
<file> change the name of the init file
<file> restore a saved workspace
prevent restoring of workspace (ignoring -L)
enable/disable package output mode
<file> Run ProfileLineByLine(<filename>) on GAP start
<file> Run CoverageLineByLine(<filename>) on GAP start
Boolean options (b,q,e,r,A,D,E,M,N,T,X,Y) toggle the current value each time they are called. Default actions are indicated first.


The GAP Group <>


     Copyright (1987--2016) by the GAP Group,

     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.