diff --git a/azarin.py b/azarin.py
new file mode 100644
index 0000000..43c5f29
--- /dev/null
+++ b/azarin.py
@@ -0,0 +1,15 @@
+from pylab import plot,show
+
+N=100
+a=1664525
+c=101390422
+m=4294967296
+x=1
+results=[]
+
+for i in range(N):
+    x=(a*x+c)\%m
+    results.append(x)
+
+plot(results,"o")
+show()
diff --git a/pres5.pdf b/pres5.pdf
index 79683dd..aa0af34 100644
Binary files a/pres5.pdf and b/pres5.pdf differ
diff --git a/pres5.tex b/pres5.tex
index bd9acb3..c9810ae 100644
--- a/pres5.tex
+++ b/pres5.tex
@@ -9,6 +9,7 @@
 \usepackage{graphicx}
 \usepackage{braket}
 \usepackage{tikz}
+\usepackage{listings}
 
 \usepackage{appendixnumberbeamer}
 
@@ -893,6 +894,20 @@
   \end{itemize}
 \end{frame}
 
+\begin{frame}{Un ejemplo}
+  \begin{figure}[ht!]
+    \begin{center}
+      \includegraphics[width=0.7\linewidth]{azarin.jpg}
+      \caption{Puntos generados por la fórmula \ref{ec:azar}.}
+      \label{fig:azarin}
+    \end{center}
+  \end{figure}
+\end{frame}
+
+\begin{frame}{El código}
+  \lstinputlisting[basicstyle=\ttfamily\scriptsize,firstline=1,lastline=16,language=python]{azarin.py}
+\end{frame}
+
 \begin{frame}{Paso de partículas a través de la materia}
   \begin{itemize}
   \item Los valores calculados por pedazos
@@ -903,4 +918,5 @@
 
 
 
+
 \end{document}