From: Raymond Hettinger Date: Thu, 19 Feb 2009 06:57:23 +0000 (+0000) Subject: Add links to helpful external resources. X-Git-Tag: v2.6.2c1~153 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b2d412117cc075328603f4f8a3b901cf286a9280;p=thirdparty%2FPython%2Fcpython.git Add links to helpful external resources. --- diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index 1e5b7597c667..63a2e3e76e34 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -1104,10 +1104,12 @@ available. They are listed here in alphabetical order. *reverse* is a boolean value. If set to ``True``, then the list elements are sorted as if each comparison were reversed. - In general, the *key* and *reverse* conversion processes are much faster than - specifying an equivalent *cmp* function. This is because *cmp* is called - multiple times for each list element while *key* and *reverse* touch each - element only once. + In general, the *key* and *reverse* conversion processes are much faster + than specifying an equivalent *cmp* function. This is because *cmp* is + called multiple times for each list element while *key* and *reverse* touch + each element only once. To convert an old-style *cmp* function to a *key* + function, see the `CmpToKey recipe in the ASPN cookbook + `_\. .. versionadded:: 2.4 diff --git a/Doc/library/math.rst b/Doc/library/math.rst index 4ecd14efd2f1..4d566a5a6461 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -100,6 +100,10 @@ Number-theoretic and representation functions occasionally double-round an intermediate sum causing it to be off in its least significant bit. + For further discussion and two alternative approaches, see the `ASPN cookbook + recipes for accurate floating point summation + `_\. + .. versionadded:: 2.6