> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/latex/da/sporgsmal-og-svar/16-how-can-i-include-matlab-code-in-my-latex-document.md).

# Hvordan kan jeg indsætte MATLAB-kode i mit LaTeX-dokument?

Den [`matlab-prettifier` pakken](https://www.ctan.org/pkg/matlab-prettifier) kan bruges til at sætte MATLAB-kode op og blev skrevet som svar på et [spørgsmål på tex.stackexchange](https://tex.stackexchange.com/questions/75116/what-can-i-use-to-typeset-matlab-code-in-my-document).

### lstlisting-miljøet

Efter at have inkluderet den `matlab-prettifier` pakken i dit dokument via

```latex
\usepackage{matlab-prettifier}
```

kan du bruge `lstlisting` miljøet til at sætte MATLAB-kode op:

```latex
\begin{lstlisting}[<options>]
MATLAB-kode...
\end{lstlisting}
```

hvor `<options>` er en kommasepareret liste over parametre, hvis værdier angives ved hjælp af nøgle-værdi-par (dvs., `parameter=value`).

* **Bemærk**: Den `matlab-prettifier` pakken er bygget op omkring den `listings` pakken, hvilket muliggør brug af funktioner, der leveres af `listings`, herunder parametre inden for `<options>` af `lstlisting` miljø. Men nogle `listings` parametre bør *ikke* bruges, og læserne rådes til at konsultere [`matlab-prettifier` dokumentationen](http://mirrors.ctan.org/macros/latex/contrib/matlab-prettifier/matlab-prettifier.pdf) for yderligere detaljer.

Det visuelle udseende af sat MATLAB-kode kan ændres ved hjælp af `stil` parameter, som understøtter tre værdier:

* `Matlab-editor`
* `Matlab-bw`
* `Matlab-Pyglike`

De følgende eksempler viser, hvordan man bruger disse stile.

### Eksempler

Her er et eksempel, der bruger MATLAB-kode fra `matlab-prettifier`’s dokumentation, som anvender `Matlab-editor` stil:

```latex
\documentclass[a4paper]{article}
\usepackage{matlab-prettifier}
\begin{document}

\begin{lstlisting}[style=Matlab-editor]
%% Sample Matlab code
!mv test.txt test2.txt
A = [1, 2, 3;... foo
     4, 5, 6];
s = 'abcd';
for k = 1:4
  Disp(s(k)) % bar
end
%{
opret rækkevektoren x, og vend den derefter om
%}
x = linspace(0,1,101);
y = x(end:-1:1);
\end{lstlisting}
\end{document}
```

[Åbn dette eksempel i Overleaf](https://www.overleaf.com/docs?engine=pdflatex\&snip_name=A+matlab-prettifier+example\&snip=%5Cdocumentclass%5Ba4paper%5D%7Barticle%7D%0A%5Cusepackage%7Bmatlab-prettifier%7D%0A%5Cbegin%7Bdocument%7D%0A%0A%5Cbegin%7Blstlisting%7D%5Bstyle%3DMatlab-editor%5D%0A%25%25+Sample+Matlab+code%0A%21mv+test.txt+test2.txt%0AA+%3D+%5B1%2C+2%2C+3%3B...+foo%0A+++++4%2C+5%2C+6%5D%3B%0As+%3D+%27abcd%27%3B%0Afor+k+%3D+1%3A4%0A++Disp%28s%28k%29%29+%25+bar%0Aend%0A%25%7B%0Acreate+row+vector+x%2C+then+reverse+it%0A%25%7D%0Ax+%3D+linspace%280%2C1%2C101%29%3B%0Ay+%3D+x%28end%3A-1%3A1%29%3B%0A%5Cend%7Blstlisting%7D%0A%5Cend%7Bdocument%7D)

Dette eksempel giver følgende output:

![MATLAB-kode sat op i LaTeX på Overleaf](/files/eeb2564b6535a2e329bfb3a9bd57140904498261)

Det næste eksempel sætter værdier for `ramme` og `linjenumre` parametre, der leveres af den `listings` pakken:

```latex
\documentclass[a4paper]{article}
\usepackage{matlab-prettifier}
\begin{document}

\begin{lstlisting}[
frame=single,
numbers=left,
style=Matlab-Pyglike]
%% Sample Matlab code
!mv test.txt test2.txt
A = [1, 2, 3;... foo
     4, 5, 6];
s = 'abcd';
for k = 1:4
  Disp(s(k)) % bar
end
%{
opret rækkevektoren x, og vend den derefter om
%}
x = linspace(0,1,101);
y = x(end:-1:1);
\end{lstlisting}
\end{document}
```

[Åbn dette eksempel i Overleaf](https://www.overleaf.com/docs?engine=pdflatex\&snip_name=A+second+matlab-prettifier+example\&snip=%5Cdocumentclass%5Ba4paper%5D%7Barticle%7D%0A%5Cusepackage%7Bmatlab-prettifier%7D%0A%5Cbegin%7Bdocument%7D%0A%0A%5Cbegin%7Blstlisting%7D%5B%0Aframe%3Dsingle%2C%0Anumbers%3Dleft%2C%0Astyle%3DMatlab-Pyglike%5D%0A%25%25+Sample+Matlab+code%0A%21mv+test.txt+test2.txt%0AA+%3D+%5B1%2C+2%2C+3%3B...+foo%0A+++++4%2C+5%2C+6%5D%3B%0As+%3D+%27abcd%27%3B%0Afor+k+%3D+1%3A4%0A++Disp%28s%28k%29%29+%25+bar%0Aend%0A%25%7B%0Acreate+row+vector+x%2C+then+reverse+it%0A%25%7D%0Ax+%3D+linspace%280%2C1%2C101%29%3B%0Ay+%3D+x%28end%3A-1%3A1%29%3B%0A%5Cend%7Blstlisting%7D%0A%5Cend%7Bdocument%7D)

Dette eksempel giver følgende output:

![MATLAB-kode sat op i LaTeX på Overleaf](/files/948945bf1886b621c0d34e51ddf7d167ff1fb4c3)

### Brug af MATLAB-kode gemt i en fil

I stedet for at inkludere MATLAB-kode direkte i dit LaTeX-dokument, brug `\lstinputlisting` kommandoen til at importere og sætte kode fra en ekstern fil op:

```latex
\lstinputlisting[<options>]{<filename>}
```

hvor

* `<options>` er en kommasepareret liste over parametre angivet som nøgle-værdi-par [(se ovenfor)](#matopts);
* `<filename>` er stien til en fil, der indeholder MATLAB-kode.

For eksempel, for at importere filen `sample.m` og sætte den op i `Matlab-bw` stil ville du skrive

```latex
\lstinputlisting[style=Matlab-bw]{sample.m}
```

Det næste eksempel sætter en ramme omkring koden, nummererer kodelinjerne (til venstre) og bruger `Matlab-bw` stil:

```latex
\lstinputlisting[
frame=single,
numbers=left,
style=Matlab-editor
]{sample.m}
```

Vælg `Åbn dette eksempel i Overleaf` linket ([se nedenfor](#openol)) til automatisk at oprette et Overleaf-projekt, som inkluderer `sample.m` MATLAB-kodefilen.

**`main.tex`**

```latex
\documentclass[a4paper]{article}
\usepackage{matlab-prettifier}
\begin{document}
\title{Import og opsætning af MATLAB-kode indeholdt i en fil}
\lstinputlisting[
frame=single,
numbers=left,
style=Matlab-bw
]{sample.m}

\end{document}
```

**`sample.m`**

```latex
%% Sample Matlab code
!mv test.txt test2.txt
A = [1, 2, 3;... foo
     4, 5, 6];
s = 'abcd';
for k = 1:4
  Disp(s(k)) % bar
end
%{
opret rækkevektoren x, og vend den derefter om
%}
x = linspace(0,1,101);
y = x(end:-1:1);
```

[Åbn dette eksempel i Overleaf (det opretter `sample.m` fil).](https://www.overleaf.com/docs?engine=pdflatex\&snip_name\[]=main.tex\&snip\[]=%5Cdocumentclass%5Ba4paper%5D%7Barticle%7D%0A%5Cusepackage%7Bmatlab-prettifier%7D%0A%5Cbegin%7Bdocument%7D%0A%5Ctitle%7BImporting+and+typesetting+MATLAB+code+contained+in+a+file%7D%0A%5Clstinputlisting%5B%0Aframe%3Dsingle%2C%0Anumbers%3Dleft%2C%0Astyle%3DMatlab-bw%0A%5D%7Bsample.m%7D%0A%0A%5Cend%7Bdocument%7D\&snip_name\[]=sample.m\&snip\[]=%25%25+Sample+Matlab+code%0A%21mv+test.txt+test2.txt%0AA+%3D+%5B1%2C+2%2C+3%3B...+foo%0A+++++4%2C+5%2C+6%5D%3B%0As+%3D+%27abcd%27%3B%0Afor+k+%3D+1%3A4%0A++Disp%28s%28k%29%29+%25+bar%0Aend%0A%25%7B%0Acreate+row+vector+x%2C+then+reverse+it%0A%25%7D%0Ax+%3D+linspace%280%2C1%2C101%29%3B%0Ay+%3D+x%28end%3A-1%3A1%29%3B\&main_document=main.tex)

Dette eksempel giver følgende output:

![MATLAB-kode sat op i LaTeX på Overleaf](/files/dfc636f20b17377916beed95449db2f5d3dae3b7)


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