[hackers] [libzahl] Manual: lcm: warn that gcd may be zero || Mattias Andrée

[git]

commit 1cd4ab5ac3c4084541eb1b999e3af9c9156f5bca
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Mon Jun 6 12:21:51 2016 +0200
Commit:     Mattias Andrée <maand...@kth.se>
CommitDate: Mon Jun 6 12:21:51 2016 +0200

    Manual: lcm: warn that gcd may be zero
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/doc/not-implemented.tex b/doc/not-implemented.tex
index baa8eba..4b38647 100644
--- a/doc/not-implemented.tex
+++ b/doc/not-implemented.tex
@@ -85,6 +85,9 @@ more about this, I refer you to Wikipeida.
     \mbox{lcm}(a, b) = \frac{\lvert a \cdot b \rvert}{\mbox{gcd}(a, b)}
 }\)
 
+Be aware, {\tt zgcd} can return zero. If this
+is ignored.
+
 
 \newpage
 \section{Modular multiplicative inverse}