[GAP Forum] problem with AutomorphismGroup

[Markus Szymik]

Dear Alexander,

The error occurred while I was accessing GAP through Sage. 
When I use GAP directly from within a terminal, the problem disappears.
Thanks a lot for pointing out that it should work.

All the best,

Markus

> Dear Markus,
> 
> For me, this works fine, both with default packages and without packages,
> for example:
> 
> GAP4, Version: 4.4.12 of 17-Dec-2008, i686-apple-darwin10.8.0-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, 
>             small11 0.1, 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:    AClib 1.1, Polycyclic 2.8.1, Alnuth 2.3.1, AutPGrp 1.4, nq 2.2, 
>             GAPDoc 1.3, IO 3.3, CrystCat 1.1.3, Cryst 4.1.6, CRISP 1.3.4, 
>             CTblLib 1.1.3, TomLib 1.1.4, FactInt 1.5.3, FGA 1.1.0.1, 
>             IRREDSOL 1.2, LAGUNA 3.5.0, Sophus 1.23, MIPLib 1.0, 
>             Polenta 1.2.7, ResClasses 3.0.0  loaded.
> gap> AutomorphismGroup(DihedralGroup(8));
> <group of size 8 with 3 generators>
> 
> Which version of GAP are you using? How did you install it? 
> Could you copy-and-paste the exact GAP session where you have this error?
> 
> Best wishes,
> Alexander
> 
> 
> On 25 May 2012, at 10:05, Markus Szymik wrote:
> 
>> 
>> Dear Forum,
>> 
>> I am trying to compute automorphism groups of p-groups, 
>> and GAP responds with an error message I don't understand. 
>> For example,
>> 
>> 	AutomorphismGroup(DihedralGroup(8));
>> 
>> results in:
>> 
>> 	...
>> 	RuntimeError: Gap produced error output
>> 	Function: number of arguments must be 1 (not 2)
>> 
>> The command works fine for all groups of order less than 8.
>> What is wrong here?
>> 
>> Thanks,
>> 
>> Markus
>> 
>> 
>> 
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> 
> 
> --
> Dr. Alexander Konovalov               School of Computer Science
> & Centre for Interdisciplinary Research in Computational Algebra
> University of St Andrews                 Tel +44/0 (1334) 461633
> http://www.cs.st-andrews.ac.uk/~alexk    Fax +44/0 (1334) 463278
> The University of St Andrews is a charity registered in Scotland:No.SC013532
> 
> 
> 
> 
> 
> 
>