[GAP Forum] Is it possible to convert a GAP character table into a table with LaTeX format?

[Chris Wensley]

Dear Russ

This is just the sort of operation which would fit well in the Utils package, in the section on printing.  Would you be agreeable to this?

Best wishes, Chris Wensley
________________________________
From: Russ Woodroofe <rsw9 at cornell.edu>
Sent: 08 September 2018 09:56:51
To: Bernhard Boehmler; forum at gap-system.org
Subject: Re: [GAP Forum] Is it possible to convert a GAP character table into a table with LaTeX format?



Dear Bernhard,
I'll give an alternative take.  Writing code to export what you want is pretty easy -- you just need to iterate through the rows and columns of the character table.

I've attached code that takes a matrix and converts it to html (and outputs it in Gap.app -- see cocoagap.sourceforge.io ).  I think you can easily do something similar by iterating through Irr(CharacterTable(G)).

Best,

  --Russ


# code to pretty-print a matrix using html tables
HTMLPrintMatrix:=function(mat)
  local htmlstr, m, n, i, j;

  if not IsMatrix(mat) then
    return fail;
  fi;

  htmlstr:="<style>table.mf { margin-left: 1em; border-left: .1em solid black; border-right: .1em solid black;} .mf td { padding: 0 .5em; text-align: right; } </style>";

  Append(htmlstr, "<table class='mf'>");

  m:=DimensionsMat(mat)[1];
  n:=DimensionsMat(mat)[2];
  for i in [1..m] do
    Append(htmlstr, "<tr>");
    for j in [1..n] do
      Append(htmlstr, "<td>");
      Append(htmlstr, String(mat[i][j]));
      Append(htmlstr, "</td>");
    od;
    Append(htmlstr, "</tr>");
  od;
  Append(htmlstr, "</table>");
  WcHtmlOut(htmlstr);
  return htmlstr;
end;


> On 7 Sep 2018, at 15:50, Bernhard Boehmler <bernhard.boehmler at googlemail.com> wrote:
>
> Dear Dima, dear Thomas, dear GAP Forum,
>
> thank you very much for your answers. They do help me a lot.
>
> Kind regards,
> Bernhard
>
>
>
>
> On Fri, Sep 7, 2018 at 1:16 PM Thomas Breuer <sam at math.rwth-aachen.de>
> wrote:
>
>> Dear GAP Forum,
>>
>> concerning the question about showing character tables
>> in LaTeX documents in a nice way,
>> it is not clear to me what nice means,
>> but my suggestion would be to take what `Display' or `Browse'
>> for the character table in question shows,
>> and to put this into LaTeX's verbatim environment.
>> This is suitable also for tables which have to be split
>> into several pages.
>>
>> All the best,
>> Thomas
>>
>>
>> On Thu, Sep 06, 2018 at 05:01:43PM +0200, Bernhard Boehmler wrote:
>>> Dear GAP forum,
>>>
>>> I'd like to ask the following question.
>>>
>>> Is there an automatized way to get a LaTeX - document or LaTeX - string
>>> which display a character table computed with GAP nicely, for example as
>>> array or as table?
>>>
>>> Thanks for the help in advance.
>>>
>>> Yours, sincerely
>>> Bernhard Boehmler
>>
>>
> _______________________________________________
> Forum mailing list
> Forum at gap-system.org
> https://mail.gap-system.org/mailman/listinfo/forum


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