1 | initial version |

Well...

```
sage: latex(GF(3).multiplication_table())
{\setlength{\arraycolsep}{2ex}
\begin{array}{r|*{3}{r}}
\multicolumn{1}{c|}{\ast}&a&b&c\\\hline
{}a&a&a&a\\
{}b&a&b&c\\
{}c&a&c&b\\
\end{array}}
```

In a console (or in `emacs`

's `sage-shell-view`

), `view(GF(3).addition_table())`

gets me this:

Sage's `view`

uses Mathjax by default, but reverts to $\LaTeX$ when the latex string contains some "trigger" commands (this can be customized via `latex.add_to_mathjax_avoid_list`

).

But, indeed, in a Jupyter notebook, this fails (not only on `\multicolumn`

but also on `{\setlength{\arraycolsep}{2ex}`

), probably because the notebook can't use $\LaTeX$\, and mathjax isn't a complete implementation if it).

By the way, the `mathjax`

implementation of the present server has the same problem: A cut'n'paste of the $\LaTeX$ string generating the (correct) representation of the multiplication table gives this:

$${\setlength{\arraycolsep}{2ex} \begin{array}{r|*{3}{r}} \multicolumn{1}{c|}{\ast}&a&b&c\\hline {}a&a&a&a\ {}b&a&b&c\ {}c&a&c&b\ \end{array}}$$

This can probably worked around by saving the latex text, compiling it with an external LaTeX installation, converting the output to, say, `.png`

and displaying it in the notebook. An utility function might be written for that.

One more reason to use $\LaTeX$ an Sagetex (or pythontex (or org-mode))...

HTH,

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