Merged revisions 75117 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r75117 | mark.dickinson | 2009-09-28 19:54:55 +0100 (Mon, 28 Sep 2009) | 3 lines

  Issue #3366:  Add gamma function to math module.
  (lgamma, erf and erfc to follow).
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