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       GAP - Groups, Algorithms and Programming


       GAP  is  a  system  for  computational discrete algebra with particular
       emphasis on computational group theory, but which  has  already  proved
       useful also in other areas. In the example text, gap is used to analyse
       Rubik’s Cube using group theory.  A  kernel  implements  a  pascal-like


       usage: gap [OPTIONS] [FILES]

              run the Groups, Algorithms and Programming system, Version 4.4.8

       -h     print this help and exit

       -b     disable/enable the banner

       -q     enable/disable quiet mode

       -e     disable/enable quitting on <ctr>-D

       -f     force line editing

       -n     prevent line editing

       -x <num>
              set line width

       -y <num>
              set number of lines

       -g     show GASMAN messages (full garbage collections)

       -g -g  show GASMAN messages (all garbage collections)

       -m <mem>
              set the initial workspace size

       -o <mem>
              set hint for maximal workspace size (GAP may allocate more)

       -K <mem>
              set maximal workspace size (GAP never allocates more)

       -c <mem>
              set the cache size value

       -a <mem>
              set  amount  to  pre-malloc-ate  postfix  ’k’  =  *1024,  ’m’  =
              *1024*1024, ’g’ = *1024*1024*1024

       -l <paths>
              set the GAP root paths

       -r     disable/enable reading of the ’.gaprc’ file

       -A     disable/enable autoloading of GAP packages

       -B <name>
              current architecture

       -D     enable/disable debugging the loading of library files

       -M     disable/enable loading of compiled modules

       -N     disable/enable check for completion files

       -T     disable/enable break loop

       -X     enable/disable CRC for comp. files while reading

       -Y     enable/disable CRC for comp. files while completing

       -i <file>
              change the name of the init file

       -L <file>
              restore a saved workspace

       -R     prevent restoring of workspace (ignoring -L)

              Boolean options (b,q,e,r,A,D,M,N,T,X,Y) toggle the current value
              each time they are called. Default actions are indicated  first.


       The GAP Group <>


            Copyright (1987--2006) 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.


       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.