Para insertar código en sus documentos latex, el documento debe de estar estructurado más o menos de la siguiente manera:
En este ejemplo todo el código y el cuerpo del documento está en el archivo principal, si ustedes lo desean lo pueden separar.
%https://www.sharelatex.com/learn/Code_listing
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{listings}
\usepackage{color}
\definecolor{codegreen}{rgb}{0,0.6,0}
\definecolor{codegray}{rgb}{0.5,0.5,0.5}
\definecolor{codepurple}{rgb}{0.9,0.5,0.0}
\definecolor{backcolour}{rgb}{0.95,0.95,0.92}
\definecolor{mygreen}{rgb}{0,0.6,0}
\definecolor{mygray}{rgb}{0.5,0.5,0.5}
\definecolor{mymauve}{rgb}{0.58,0,0.82}
\lstset{ %
backgroundcolor=\color{white}, % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
basicstyle=\footnotesize, % the size of the fonts that are used for the code
breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
breaklines=true, % sets automatic line breaking
captionpos=b, % sets the caption-position to bottom
commentstyle=\color{red}, % comment style
deletekeywords={...}, % if you want to delete keywords from the given language
escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
extendedchars=true, % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8
frame=single, % adds a frame around the code
keepspaces=true, % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
keywordstyle=\color{green}, % keyword style
language=C, % the language of the code
morekeywords={*,...}, % if you want to add more keywords to the set
numbers=left, % where to put the line-numbers; possible values are (none, left, right)
numbersep=5pt, % how far the line-numbers are from the code
numberstyle=\tiny\color{mygray}, % the style that is used for the line-numbers
rulecolor=\color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
showspaces=false, % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
showstringspaces=false, % underline spaces within strings only
showtabs=false, % show tabs within strings adding particular underscores
stepnumber=1, % the step between two line-numbers. If it's 1, each line will be numbered
stringstyle=\color{mymauve}, % string literal style
tabsize=2, % sets default tabsize to 2 spaces
title=\lstname % show the filename of files included with \lstinputlisting; also try caption instead of title
}
\lstdefinestyle{mystyle}{
backgroundcolor=\color{backcolour},
commentstyle=\color{red},
keywordstyle=\color{blue},
numberstyle=\tiny\color{codegray},
stringstyle=\color{codepurple},
basicstyle=\footnotesize,
breakatwhitespace=false,
breaklines=true,
captionpos=b,
keepspaces=true,
numbers=left,
numbersep=10pt,
showspaces=false,
showstringspaces=false,
showtabs=false,
tabsize=2
}
\lstdefinestyle{customc}{
belowcaptionskip=1\baselineskip,
breaklines=true,
frame=L,
xleftmargin=\parindent,
language=C,
showstringspaces=false,
basicstyle=\footnotesize\ttfamily,
keywordstyle=\bfseries\color{green!40!black},
commentstyle=\itshape\color{purple!40!black},
identifierstyle=\color{black},
stringstyle=\color{orange},
}
\lstdefinestyle{customasm}{
belowcaptionskip=1\baselineskip,
frame=L,
xleftmargin=\parindent,
language=[x86masm]Assembler,
basicstyle=\footnotesize\ttfamily,
commentstyle=\itshape\color{purple!40!black},
}
\lstset{escapechar=@,style=customc}
\lstset{style=mystyle}
\lstset{literate=
{á}{{\'a}}1 {é}{{\'e}}1 {í}{{\'i}}1 {ó}{{\'o}}1 {ú}{{\'u}}1
{Á}{{\'A}}1 {É}{{\'E}}1 {Í}{{\'I}}1 {Ó}{{\'O}}1 {Ú}{{\'U}}1
{à}{{\`a}}1 {è}{{\`e}}1 {ì}{{\`i}}1 {ò}{{\`o}}1 {ù}{{\`u}}1
{À}{{\`A}}1 {È}{{\'E}}1 {Ì}{{\`I}}1 {Ò}{{\`O}}1 {Ù}{{\`U}}1
{ä}{{\"a}}1 {ë}{{\"e}}1 {ï}{{\"i}}1 {ö}{{\"o}}1 {ü}{{\"u}}1
{Ä}{{\"A}}1 {Ë}{{\"E}}1 {Ï}{{\"I}}1 {Ö}{{\"O}}1 {Ü}{{\"U}}1
{â}{{\^a}}1 {ê}{{\^e}}1 {î}{{\^i}}1 {ô}{{\^o}}1 {û}{{\^u}}1
{Â}{{\^A}}1 {Ê}{{\^E}}1 {Î}{{\^I}}1 {Ô}{{\^O}}1 {Û}{{\^U}}1
{œ}{{\oe}}1 {Œ}{{\OE}}1 {æ}{{\ae}}1 {Æ}{{\AE}}1 {ß}{{\ss}}1
{ç}{{\c c}}1 {Ç}{{\c C}}1 {ø}{{\o}}1 {å}{{\r a}}1 {Å}{{\r A}}1
{€}{{\EUR}}1 {£}{{\pounds}}1
}
\begin{document}
Aquí se muestra un ejemplo en lenguaje Python, junto con su etiqueta que llevará el código.
\begin{lstlisting}[language=Python, caption=Código de ejemplo en Python]
import numpy as np
def incmatrix(genl1,genl2):
m = len(genl1)
n = len(genl2)
M = None #to become the incidence matrix
VT = np.zeros((n*m,1), int) #dummy variable
#compute the bitwise xor matrix
M1 = bitxormatrix(genl1)
M2 = np.triu(bitxormatrix(genl2),1)
for i in range(m-1):
for j in range(i+1, m):
[r,c] = np.where(M2 == M1[i,j])
for k in range(len(r)):
VT[(i)*n + r[k]] = 1;
VT[(i)*n + c[k]] = 1;
VT[(j)*n + r[k]] = 1;
VT[(j)*n + c[k]] = 1;
if M is None:
M = np.copy(VT)
else:
M = np.concatenate((M, VT), 1)
VT = np.zeros((n*m,1), int)
return M
\end{lstlisting}
Un ejemplo de código en C
\begin{lstlisting}[language=C, caption=Gauss-Jordan en C]
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <ncurses.h>
/*Declaración de procedimientos y funciones*/
void gausJordan(float **matriz,int n,float *raices);
void imprimirMatriz(float *raices,int n);
void leerValores(float **matriz,int n);
/*Función principal*/
int main(){
int n;
float **matriz,*raices;
printf("Ingrese el número de ecuaciones (n): ");
scanf("%d",&n);
getchar();
matriz=(float**) malloc (sizeof (float*)*n);
raices=(float*) malloc (sizeof (float*)*n);
leerValores(matriz,n);
gausJordan(matriz,n,raices);
printf("Solución \n\n");
imprimirMatriz(raices,n);
getchar();
return 0;
}
/*Procedimiento para mostrar en pantalla los elementos de la matriz*/
void imprimirMatriz(float *raices,int n){
int i;
for(i=0;i<n;i++){
/*algún otro código aquí*/
}
}
/*Procedimiento que realiza el proceso de Gauss-Jordan*/
void gausJordan(float **matriz,int n,float *raices){
int i,j,k;
float termino;
for(i=0;i<n;i++){
/*tu código aquí*/
}
}
\end{lstlisting}
\end{document}
