The SL2Z object is from the modular stuff with about zero integration with
matrix groups, unfortunately. Compare the "matrix group" SL(2,Z):
sage: S, T = SL(2,ZZ).gens()
sage: latex(S)
\left(\begin{array}{rr}
0 & 1 \\
-1 & 0
\end{array}\right)
The output comes from the modular SL2Z having no functionality for latex
output, so text output is converted to LaTeX using \verb and array.
On Thursday, March 28, 2013 4:08:28 PM UTC, John Cremona wrote:
>
> This is horrible (and causes nasty things to happen in SageTex):
>
> sage: S,T = SL2Z.gens()
> sage: latex(S)
> \begin{array}{l}
> \verb|[|\phantom{\verb!x!}\verb|0|\phantom{\verb!x!}\verb|-1]|\\
> \verb|[|\phantom{\verb!x!}\verb|1|\phantom{\verb!xx!}\verb|0]|
> \end{array}
>
> This is much better:
>
> sage: latex(S.matrix())
> \left(\begin{array}{rr}
> 0 & -1 \\
> 1 & 0
> \end{array}\right)
>
> but where is the first version coming from?
>
> John
>
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