From: Raymond Hettinger <python@rcn.com>
Date: Wed, 17 Jun 2009 01:43:47 +0000 (+0000)
Subject: Add usage note.
X-Git-Tag: v2.7a1~938
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3a02624059871dda84c376a94f01a20af5391d2b;p=python

Add usage note.
---

diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 918918cc94..eb6306ff2c 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -245,6 +245,10 @@ 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:: 2.7
       added *step* argument and allowed non-integer arguments.