#4332 imaxima is unable to display zn_mult_table(13)

[dao]

imaxima display results of zn_mult_table(13) as follows:

(%i1) zn_mult_table(13);
LaTeX error in: \ifx\endpmatrix\undefined\pmatrix{\else\begin{pmatrix}\fi 1&\linebreak[0]2&\linebreak[0]3&\linebreak[0]4&\linebreak[0]5&\linebreak[0]6&\linebreak[0]7&\linebreak[0]8&\linebreak[0]9&\linebreak[0]10&\linebreak[0]11&\linebreak[0]12\cr 2&\linebreak[0]4&\linebreak[0]6&\linebreak[0]8&\linebreak[0]10&\linebreak[0]12&\linebreak[0]1&\linebreak[0]3&\linebreak[0]5&\linebreak[0]7&\linebreak[0]9&\linebreak[0]11\cr 3&\linebreak[0]6&\linebreak[0]9&\linebreak[0]12&\linebreak[0]2&\linebreak[0]5&\linebreak[0]8&\linebreak[0]11&\linebreak[0]1&\linebreak[0]4&\linebreak[0]7&\linebreak[0]10\cr 4&\linebreak[0]8&\linebreak[0]12&\linebreak[0]3&\linebreak[0]7&\linebreak[0]11&\linebreak[0]2&\linebreak[0]6&\linebreak[0]10&\linebreak[0]1&\linebreak[0]5&\linebreak[0]9\cr 5&\linebreak[0]10&\linebreak[0]2&\linebreak[0]7&\linebreak[0]12&\linebreak[0]4&\linebreak[0]9&\linebreak[0]1&\linebreak[0]6&\linebreak[0]11&\linebreak[0]3&\linebreak[0]8\cr 6&\linebreak[0]12&\linebreak[0]5&\linebreak[0]11&\linebreak[0]4&\linebreak[0]10&\linebreak[0]3&\linebreak[0]9&\linebreak[0]2&\linebreak[0]8&\linebreak[0]1&\linebreak[0]7\cr 7&\linebreak[0]1&\linebreak[0]8&\linebreak[0]2&\linebreak[0]9&\linebreak[0]3&\linebreak[0]10&\linebreak[0]4&\linebreak[0]11&\linebreak[0]5&\linebreak[0]12&\linebreak[0]6\cr 8&\linebreak[0]3&\linebreak[0]11&\linebreak[0]6&\linebreak[0]1&\linebreak[0]9&\linebreak[0]4&\linebreak[0]12&\linebreak[0]7&\linebreak[0]2&\linebreak[0]10&\linebreak[0]5\cr 9&\linebreak[0]5&\linebreak[0]1&\linebreak[0]10&\linebreak[0]6&\linebreak[0]2&\linebreak[0]11&\linebreak[0]7&\linebreak[0]3&\linebreak[0]12&\linebreak[0]8&\linebreak[0]4\cr 10&\linebreak[0]7&\linebreak[0]4&\linebreak[0]1&\linebreak[0]11&\linebreak[0]8&\linebreak[0]5&\linebreak[0]2&\linebreak[0]12&\linebreak[0]9&\linebreak[0]6&\linebreak[0]3\cr 11&\linebreak[0]9&\linebreak[0]7&\linebreak[0]5&\linebreak[0]3&\linebreak[0]1&\linebreak[0]12&\linebreak[0]10&\linebreak[0]8&\linebreak[0]6&\linebreak[0]4&\linebreak[0]2\cr 12&\linebreak[0]11&\linebreak[0]10&\linebreak[0]9&\linebreak[0]8&\linebreak[0]7&\linebreak[0]6&\linebreak[0]5&\linebreak[0]4&\linebreak[0]3&\linebreak[0]2&\linebreak[0]1\cr \ifx\endpmatrix\undefined}\else\end{pmatrix}\fi 

(%i2) 

[dao]

build info as follows:

-------------------------------------------------------------
build_info(5.47.0 ,2024-02-17 13:24:51 ,x86_64-redhat-linux-gnu ,SBCL ,2.3.11-2.fc40 ,/home/xxx/.maxima ,/tmp ,/home/xxx/.maxima/binary/5_47_0/sbcl/2_3_11_2_fc40 ,false,false)

[dao]

The contents of the file 1.tex as follows:
\documentclass[11pt,leqno]{article}
% mylatex
\setlength{\textwidth}{205mm}
\begin{document}
\pagecolor[rgb]{0.062745,0.235294,0.282353}
\pagestyle{empty}
\begin{normalsize}
\color[rgb]{1.000000,0.000000,0.000000}
\begin{dmath}[number={\%o1}]
\color[rgb]{0.000000,0.000000,0.000000}
\ifx\endpmatrix\undefined\pmatrix{\else\begin{pmatrix}\fi 1&\linebreak[0]2&\linebreak[0]3&\linebreak[0]4&\linebreak[0]5&\linebreak[0]6&\linebreak[0]7&\linebreak[0]8&\linebreak[0]9&\linebreak[0]10&\linebreak[0]11&\linebreak[0]12\cr 2&\linebreak[0]4&\linebreak[0]6&\linebreak[0]8&\linebreak[0]10&\linebreak[0]12&\linebreak[0]1&\linebreak[0]3&\linebreak[0]5&\linebreak[0]7&\linebreak[0]9&\linebreak[0]11\cr 3&\linebreak[0]6&\linebreak[0]9&\linebreak[0]12&\linebreak[0]2&\linebreak[0]5&\linebreak[0]8&\linebreak[0]11&\linebreak[0]1&\linebreak[0]4&\linebreak[0]7&\linebreak[0]10\cr 4&\linebreak[0]8&\linebreak[0]12&\linebreak[0]3&\linebreak[0]7&\linebreak[0]11&\linebreak[0]2&\linebreak[0]6&\linebreak[0]10&\linebreak[0]1&\linebreak[0]5&\linebreak[0]9\cr 5&\linebreak[0]10&\linebreak[0]2&\linebreak[0]7&\linebreak[0]12&\linebreak[0]4&\linebreak[0]9&\linebreak[0]1&\linebreak[0]6&\linebreak[0]11&\linebreak[0]3&\linebreak[0]8\cr 6&\linebreak[0]12&\linebreak[0]5&\linebreak[0]11&\linebreak[0]4&\linebreak[0]10&\linebreak[0]3&\linebreak[0]9&\linebreak[0]2&\linebreak[0]8&\linebreak[0]1&\linebreak[0]7\cr 7&\linebreak[0]1&\linebreak[0]8&\linebreak[0]2&\linebreak[0]9&\linebreak[0]3&\linebreak[0]10&\linebreak[0]4&\linebreak[0]11&\linebreak[0]5&\linebreak[0]12&\linebreak[0]6\cr 8&\linebreak[0]3&\linebreak[0]11&\linebreak[0]6&\linebreak[0]1&\linebreak[0]9&\linebreak[0]4&\linebreak[0]12&\linebreak[0]7&\linebreak[0]2&\linebreak[0]10&\linebreak[0]5\cr 9&\linebreak[0]5&\linebreak[0]1&\linebreak[0]10&\linebreak[0]6&\linebreak[0]2&\linebreak[0]11&\linebreak[0]7&\linebreak[0]3&\linebreak[0]12&\linebreak[0]8&\linebreak[0]4\cr 10&\linebreak[0]7&\linebreak[0]4&\linebreak[0]1&\linebreak[0]11&\linebreak[0]8&\linebreak[0]5&\linebreak[0]2&\linebreak[0]12&\linebreak[0]9&\linebreak[0]6&\linebreak[0]3\cr 11&\linebreak[0]9&\linebreak[0]7&\linebreak[0]5&\linebreak[0]3&\linebreak[0]1&\linebreak[0]12&\linebreak[0]10&\linebreak[0]8&\linebreak[0]6&\linebreak[0]4&\linebreak[0]2\cr 12&\linebreak[0]11&\linebreak[0]10&\linebreak[0]9&\linebreak[0]8&\linebreak[0]7&\linebreak[0]6&\linebreak[0]5&\linebreak[0]4&\linebreak[0]3&\linebreak[0]2&\linebreak[0]1\cr \ifx\endpmatrix\undefined}\else\end{pmatrix}\fi
\end{dmath}
\end{normalsize}
\end{document}

[Jinsong Zhao]

It's not a bug of imaxima. It's behaviour of the counter variable
MaxMatrixCols defined in amsmath package. Its default value is 10. If
you need, say, 15 cols, issue the instruction \setcounter{MaxMatrixCols}{15}

I think this is answered in previous message.

Best,

Jinsong

[Robert Dodier]

Thanks for the bug report. Does it work correctly for any number smaller than 13?

[Leo Butler]

Imaxima is reporting a LaTeX error. Could you attach the log file, please?

[Leo Butler]

Never mind. I can reproduce the error.

According to this, adding the command

\setcounter{MaxMatrixCols}{20}

to the variable imaxima-latex-macros will prevent the error from happening with your example. You can increase that 20 for larger matrices.

Since a 13x13 matrix is pretty easy to create in Maxima, it seems like imaxima should set MaxMatrixCols to a larger value than the default.

[dao]

I'm sorry for that I don't know how to add the command to the imaxima-latex-macros.I tried to add the command to the variable by editing the imaxima.el file, and didn't fix the issue.
Any advice?

[Leo Butler]

In Emacs, you do:

M-x customize-variable RET imaxima-latex-macros RET

This will open up a customization window with the current value of imaxima-latex-macros displayed. You can edit that value and then choose [Apply] or [Apply and Save] to set the new value. Apply only sets it for the current session, Apply and Save also saves the new value in your .emacs file.

I have attached a screenshot.