Thanks all for your help. It took some time to fiddle out the directories, but now GAP is crunching on the multiplication table.
R.E. Boss > -----Oorspronkelijk bericht----- > Van: rfmo...@gmail.com [mailto:rfmo...@gmail.com] Namens Robert Morse > Verzonden: vrijdag 17 augustus 2012 16:38 > Aan: R.E. Boss > CC: fo...@gap-system.org > Onderwerp: Re: [GAP Forum] how to recognise a group? > > You can create a file with GAP commands and read them into GAP with > the Read command. > > If you put > > M := [ [ 1, 2, 3, 4, 5 ], [ 2, 3, 4, 5, 1 ], [ 3, 4, 5, 1, 2 ], [ 4, > 5, 1, 2, 3 ], [ 5, 1, 2, 3, 4 ] ]; > > in a file "table.g" and at the GAP command prompt > > gap> Read("table.g"); > gap> M; > [ [ 1, 2, 3, 4, 5 ], [ 2, 3, 4, 5, 1 ], [ 3, 4, 5, 1, 2 ], [ 4, 5, 1, > 2, 3 ], [ 5, 1, 2, 3, 4 ] ] > > you see the variable is assigned as needed. > > I am assuming that you are generating the tables using some program. > If so make sure it is formatted as a list of lists that GAP can use. > > Also look at > > http://www.gap-system.org/Manuals/doc/ref/chap9.html#X8373AC6B7D5F9167 > > for more information on the GAP read command. > > Robert > > On Fri, Aug 17, 2012 at 8:56 AM, R.E. Boss <r.e.b...@planet.nl> wrote: > > Thanks for the reply. > > Problem becomes: how do I enter a multiplication table of 2304 = 48^2 > > elements into GAP? > > Is there some read facility? > > Preparing a list of 48 lists of 48 elements is not the problem, entering by > > hand is quite another story. > > > > > > R.E. Boss > > > > > >> -----Oorspronkelijk bericht----- > >> Van: rfmo...@gmail.com [mailto:rfmo...@gmail.com] Namens Robert Morse > >> Verzonden: donderdag 16 augustus 2012 14:51 > >> Aan: R.E. Boss > >> CC: fo...@gap-system.org > >> Onderwerp: Re: [GAP Forum] how to recognise a group? > >> > >> In my example the table M is the cyclic group. > >> > >> Given the multiplication table say M do the following: > >> > >> Form the group using the multiplication table: > >> > >> gap> G := GroupByMultiplicationTable(M); > >> <group of size 48 with 48 generators> > >> > >> Ask for some structural information to get an idea what the group is: > >> > >> gap> StructureDescription(G); > >> "C48" > >> > >> Robert F. Morse > >> > >> On Tue, Aug 14, 2012 at 1:49 PM, R.E. Boss <r.e.b...@planet.nl> wrote: > >> > Hello, > >> > > >> > > >> > > >> > I'm new to Gap and using it for a couple of days only and would like to > >> > have the next question answered. > >> > > >> > If I have a multiplication table of a (small) group, how can I determine > >> > which group it is? > >> > > >> > The actual table I have is for group of 48 elements. > >> > > >> > > >> > > >> > R.E. Boss > >> > > >> > > >> > > >> > > >> > > >> > _______________________________________________ > >> > Forum mailing list > >> > Forum@mail.gap-system.org > >> > http://mail.gap-system.org/mailman/listinfo/forum > > _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
