Index: Doc/tutorial/floatingpoint.rst
===================================================================
--- Doc/tutorial/floatingpoint.rst	(revision 66467)
+++ Doc/tutorial/floatingpoint.rst	(working copy)
@@ -135,7 +135,22 @@
 :func:`str` usually suffices, and for finer control see the :meth:`str.format`
 method's format specifiers in :ref:`formatstrings`.
 
+Python provides a couple of methods that may help on those rare
+occasions when you really *do* want to know the exact value of a
+float.  The :meth:`float.as_integer_ratio` method expresses the value
+of a float as a fraction::
 
+   >>> x = 3.14159
+   >>> x.as_integer_ratio()
+   (3537115888337719L, 1125899906842624L)
+
+The :meth:`float.hex` method expresses a float in hexadecimal (base
+16), again giving the exact value stored by your computer::
+
+   >>> x.hex()
+   '0x1.921f9f01b866ep+1'
+
+
 .. _tut-fp-error:
 
 Representation Error