From 821d9893f5749db996a3a384c50c75ed92bafe2e Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Fri, 13 May 2016 10:53:52 +0200
Subject: Add entry in TODO, and more on the Not implemented chapter
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 doc/not-implemented.tex | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'doc/not-implemented.tex')

diff --git a/doc/not-implemented.tex b/doc/not-implemented.tex
index db9e2ca..ac18212 100644
--- a/doc/not-implemented.tex
+++ b/doc/not-implemented.tex
@@ -7,7 +7,16 @@ but would fit into libzahl had we not have
 our priorities straight. Functions listed
 herein will only be implemented if there
 is shown that it would be overwhelmingly
-advantageous.
+advantageous. For each feature, a sample
+implementation or a mathematical expression
+on which you can base your implemention.
+The sample implementation create temporary
+integere references, this is for simplicity
+in the example, your should try to use
+dedicated variables, in case of recursion,
+a robust program should store temporary
+variables on a stack, so they can be
+clean up of something happens.
 
 \vspace{1cm}
 \minitoc
-- 
cgit v1.2.3-70-g09d2

