How to write Octave code on LaTeX?

Question

Here is an exemple of code I would like to write:

clear all; close all; clc;
X = Y = 0:0.1:1;
for i=1:length(X)
  for j=1:length(Y)
    Z(i, j) = X(i) + Y(j);
  endfor
endfor
mesh(Y, X, Z)

The problem is that list that lstlisting does not take colors, and I would like my code to appear exacly as it appears on Octave (almost the same environnement as Matlab). How could I do that ?

Have you tried using lstlisting (lot of examples around) telling it it is Matlab code? https://tex.stackexchange.com/questions/75116/what-can-i-use-to-typeset-matlab-code-in-my-document could be helpful — Rmano, Apr 20 '22 at 07:04
Without a screenshot of what you expect it is hard to tell, but this might help as well: https://tex.stackexchange.com/questions/430527/how-to-display-colors-of-octave-code-in-latex-with-listings — , Apr 20 '22 at 07:23
for a strange reason, I couldn't add a picture to this post... Thanks for the links ! — Emile Couzin, Apr 20 '22 at 09:53

score 2 · Accepted Answer · answered May 24 '22 at 09:56

I recommend using minted and not lstlisting as the code is easier to copy from the PDF and run. Copying code from lstlisting produces many errors that must be fixed before the code can run. Minted has several styles, so you can chose the one you like the most for highlighting. Overleaf has a Reference guide of all the minted styles. Also, minted supports the octave language.

Here the code:

\documentclass[a4paper]{article}
\usepackage{minted}
\usepackage{xcolor}
\usemintedstyle{manni} 
\definecolor{LightGray}{rgb}{0.95,0.95,0.95}
\begin{document}
\begin{listing}[!htb]
\begin{minted}[
bgcolor=LightGray,
breaklines,
breaksymbolleft={},
breakindent={15pt}
]{octave}
clear all; close all; clc;
X = Y = 0:0.1:1;
for i=1:length(X)
  for j=1:length(Y)
    Z(i, j) = X(i) + Y(j);
  endfor
endfor
mesh(Y, X, Z)
\end{minted}
% \inputminted[%
% firstline=, 
% lastline=,
% bgcolor=LightGray,
% breaklines,
% breaksymbolleft={},
% breakindent={15pt}
% ]{octave}{Folder/file}
\caption{Code}
\label{listing:1}
\end{listing}
\end{document}

Here is the code copied from the lstlisting environment:

c l e a r a l l ; c l o s e a l l ; c l c ;
X = Y = 0 : 0 . 1 : 1 ;
for i =1: length (X)
for j =1: length (Y)
Z( i , j ) = X( i ) + Y( j ) ;
endfor
endfor
mesh(Y, X, Z)

Here is the code copied from minted environment:

clear all; close all; clc;
X = Y = 0:0.1:1;
for i=1:length(X)
for j=1:length(Y)
Z(i, j) = X(i) + Y(j);
endfor
endfor
mesh(Y, X, Z)

There are also other problems with lstlisting that does not show in this example:

all minus signs (-) turns into hyphens (slightly longer) and must be replaced
all multiplication signs (*) stop working for some reason and must be replaced

I once had to copy and run code from the lstlisting environment (I only had a PDF) and had fix over 100 mistakes before I could run the code. Almost all of these mistakes could have been avoided using minted instead of lstlisting.

Oh, thanks ! I regret I already used lstlisting everywhere... would you know how to replace all the \lstinputlisting{file.m} by minted without deleting what @I'm the 1 put in the header ? It would take me ages to undo the lst style — Emile Couzin, May 24 '22 at 10:03
If you use Overleaf you can use the replace function. Just click Ctrl+F and a little search window pops up. In the "search for" field write \lstinputlisting and in the "replace with" field write \inputminted. And then just click "replace" (replaces 1 at each click) or "all". — Vebjorn, May 24 '22 at 10:33
It worked, thanks a lot ! Last question: how do I put some special words in special colors (e.g. "+", "-", "*", "/" in red and "function", "endfunction" in blue) ? — Emile Couzin, May 24 '22 at 11:37

How to write Octave code on LaTeX?

1 Answers1