From 987b67068424f4150acdaedda4b4f0fa7240bfae Mon Sep 17 00:00:00 2001
From: Rikard Nordgren <rikard.nordgren@farmaci.uu.se>
Date: Wed, 19 Jun 2024 11:02:06 +0200
Subject: [PATCH] Add documentation for old_math_random

---
 doc/psn_configuration.tex | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/doc/psn_configuration.tex b/doc/psn_configuration.tex
index d7866f82..b87ffde7 100644
--- a/doc/psn_configuration.tex
+++ b/doc/psn_configuration.tex
@@ -199,5 +199,8 @@ \subsection{Output style}
 \end{itemize}
 The header row will not be added for MATLAB but for EXCEL and SPLUS.
 
-\end{document}
+\subsection{Using legacy Math::Random}
+
+PsN has starting with version 5.4.0 switched to use Math::Random::Free instead of Math::Random for generation of random numbers. The reason is that Math::Random isn't under an open source license. For reproducibility reasons PsN can still run using Math::Random if setting the configuration \verb|old_math_random| to $1$ in psn.conf
 
+\end{document}