1GAP(1)                           User Commands                          GAP(1)
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NAME

6       gap - Run the Groups, Algorithms and Programming system
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SYNOPSIS

9       gap [OPTIONS] [FILES]
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DESCRIPTION

12       GAP  is  a  system  for computational discrete algebra, with particular
13       emphasis on Computational Group Theory.   GAP  provides  a  programming
14       language,  a  library  of thousands of functions implementing algebraic
15       algorithms written in the GAP language as well as large data  libraries
16       of  algebraic objects.  GAP is used in research and teaching for study‐
17       ing groups and their representations, rings, vector  spaces,  algebras,
18       combinatorial structures, and more.
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OPTIONS

21       Boolean  options (b, e, p, q, r, A, D, M, N, O, T, X, and Y) toggle the
22       current value each time they are used.  Default actions  are  indicated
23       first.
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25       MEM  options  indicate  a  number of bytes.  Larger units are indicated
26       with trailing characters: 'k' for kilobytes, m for megabytes, and g for
27       gigabytes.  For example, '512k' means 512 kilobytes.
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29       -a MEM Set the amount of preallocated space.
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31       -b     Disable/enable the banner.
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33       -c MEM Set the cache size.
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35       -e     Disable/enable quitting on Ctrl-D.
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37       -f     Force line editing.
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39       -g     Show  GASMAN  messages.  If this option is given once, then full
40              garbage collections are  shown.   If  it  is  given  twice,  all
41              garbage collections are shown.
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43       -h     Print a help message and exit.
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45       -i FILE
46              Load an alternate init file.
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48       -l PATHS
49              Set  the  GAP  root  paths.  A leading semicolon means to append
50              PATHS to the existing list of root paths.  A trailing  semicolon
51              means  to  prepend  PATHS.  Otherwise, the list of root paths is
52              replaced with PATHS.
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54       -m MEM Set the initial workspace size.
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56       -n     Prevent line editing.
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58       -o MEM Set the hint for the maximal workspace size.  GAP  may  allocate
59              more.
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61       -p     Enable/disable  emitting  extra commands to the output to tell a
62              window handler what GAP is doing.
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64       -q     Enable/disable quiet mode.
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66       -r     Disable/enable reading of the .gaprc file.
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68       -x NUM Set the window width to NUM columns.
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70       -y NUM Set the window height to NUM rows.
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72       -A     Disable/enable autoloading of GAP packages.
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74       -B NAME
75              Set the name of the current architecture.
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77       -C <output> <input> <name>
78              Compile an input file with the given name into an output file.
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80       -D     Enable/disable debugging the loading of library files.
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82       -K MEM Set the maximal workspace size.  GAP never allocates more.
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84       -L FILE
85              Restore a saved workspace.
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87       -M     Disable/enable loading of compiled modules.
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89       -N     Disable/enable check for completion files.
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91       -O     Enable/disable compatibility with GAP 3, by  causing  false  and
92              fail to be the same value.
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94       -R     Prevent restoring of workspace (causes -L to be ignored).
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96       -T     Disable/enable break loop.
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98       -U OPTIONS
99              Set the compile options for compiling GAP files.
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101       -X     Enable/disable CRC while reading completion.
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103       -Y     Enable/disable CRC while completing files.
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SEE ALSO

106       gac(1), update-gap-workspace(1)
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108
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110GAP                                 4.11.1                              GAP(1)
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