From 5bc472a9a429ff051df9415e7a61046bcd78eb51 Mon Sep 17 00:00:00 2001
From: Raymond Hettinger <python@rcn.com>
Date: Wed, 17 Jun 2009 01:40:52 +0000
Subject: Add usage note.

---
 Doc/library/itertools.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 7baa5e1..ac3b761 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -235,6 +235,10 @@ loops that truncate the stream.
               yield n
               n += step
 
+   When counting with floating point numbers, better accuracy can sometimes be
+   achieved by substituting multiplicative code such as: ``(start + step * i
+   for i in count())``.
+
    .. versionchanged:: 3.1
       added *step* argument and allowed non-integer arguments.
 
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