sometimes show just display broken latex

[Kel Chan]

Hi all,

I'm trying to figure out why show sometimes show doesn't work in Jupyter.

See this screenshot for example.

I'm running 'SageMath version 9.1, Release Date: 2020-05-20' on OSX 10.15.6.

Can someone help me with this? Thanks.

Kel

[slelievre]

Not sure what prevents this from working.

A similar question was asked recently on Ask Sage:

    How to LaTeX the graph of a permutation?

    https://ask.sagemath.org/question/52649

Could you try the following workarounds below,

inspired by the answers to that question?

One solution is to use the optional package slabbe.

The other one is to define:

    def graph_from_permutation(perm):

        ee = [(i+1, perm[i]) for i in range(len(perm))]

        return DiGraph(ee, loops=True)

and then you can do:

    sage: p = Permutation([3, 2])

    sage: g = graph_from_permutation(p)

    sage: show(g)

Or you could define

    def show_permutation(perm):

        ee = [(i+1, perm[i]) for i in range(len(perm))]

        g = DiGraph(ee, loops=True)

        show(g)

and you could directly call

    sage: show_permutation(Permutation([3, 2]))

[pedrito...@gmail.com]

Probably MathJax cannot handle such an expression ... 

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[David Lowry-Duda]

On Wed, Jul 29, 2020 at 11:14:41PM +0200, pedrito...@gmail.com wrote:
> Probably MathJax cannot handle such an expression ...

Directly inserting the output of `latex(Partition([3,2]))` into
html+mathjax shows the same error, so this appears to produce latex that
mathjax doesn't handle. But I note that it is valid tex and can be
inserted into a regular latex document.

- DLD

--
David Lowry-Duda <da...@lowryduda.com> <davidlowryduda.com>

[Kel Chan]

Thanks. That’s interesting because a few versions back it did work. 
Maybe the generated latex code changed or some extension is missing from mathjax. 

Cheers,

Kel

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