[GAP Forum] RowSpace: Gap3 vs Gap4
Sven Reichard
reichard at maths.uwa.edu.au
Fri Aug 4 03:18:36 BST 2006
Ariel,
you can use VectorSpace, as in the example below. The documentation for
GAP4 can be found at
http://www.gap-system.org/Doc/doc.html
Regards,
Sven.
gap> V1 := VectorSpace(Rationals, [[1,0],[0,1]]);
<vector space over Rationals, with 2 generators>
gap> V2 := VectorSpace(Rationals, [[1,0],[1,1]]);
<vector space over Rationals, with 2 generators>
gap> V1 = V2;
true
--
Sven Reichard
School of Mathematics and Statistics
University of Western Australia
Ariel Molina Rueda wrote:
> Hi,
>
> Im using GAP GAP4, 4.4.7, i need to use RowSpace but i dotn know how to
> use it and:
>
> gap> ?RowSpace
> Help: no matching entry found
> Help: 'RowSpace' is currently undocumented.
> For details, try ?Undocumented Variables
>
>
> so i found this: http://schmidt.nuigalway.ie/gap/CHAP033.htm
> but even some of those examples give me errors.
>
> All i need to do is to compare two matrices, by comparing what they
> generate.
>
> Is there a GAP4 documentation somewhere? Google only gives GAP v3 docs
>
> gap> RowSpace(Rationals, MatTom(TableOfMarks(SmallGroup(16,3))));
> Error, usage: FullRowModule( <R>, <n> ) for ring <R> called from
> <function>( <arguments> ) called from read-eval-loop
> Entering break read-eval-print loop ...
> you can 'quit;' to quit to outer loop, or
> you can 'return;' to continue
>
>
> Thanks in advance!
>
> ---------
> GAP4, Version: 4.4.7 of 17-Mar-2006, i686-pc-linux-gnu-gcc
> Components: small 2.1, small2 2.0, small3 2.0, small4 1.0, small5 1.0,
> small6 1.0, small7 1.0, small8 1.0, small9 1.0, small10 0.2, id2 3.0,
> id3 2.1, id4 1.0, id5 1.0, id6 1.0,
> id9 1.0, id10 0.1, trans 1.0, prim 2.1 loaded.
> Packages: TomLib 1.1.2 loaded.
>
>
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