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#3288: Document as_integer_ratio

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Andrew M. Kuchling 2008-09-13 02:11:51 +00:00
parent bf64c0411f
commit 09e80938b0
1 changed files with 12 additions and 1 deletions
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Doc/library/stdtypes.rst
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@ -449,7 +449,18 @@ Notes:
Additional Methods on Float
---------------------------
The float type has some additional methods to support conversion to
The float type has some additional methods.
.. method:: float.as_integer_ratio()
Return a pair of integers whose ratio is exactly equal to the
original float and with a positive denominator. Raises
:exc:`OverflowError` on infinities and a :exc:`ValueError` on
NaNs.
.. versionadded:: 2.6
Two methods support conversion to
and from hexadecimal strings. Since Python's floats are stored
internally as binary numbers, converting a float to or from a
*decimal* string usually involves a small rounding error. In