[Python-checkins] r78312 - python/trunk/Doc/library/decimal.rst
mark.dickinson
python-checkins at python.org
Mon Feb 22 16:40:28 CET 2010
Author: mark.dickinson
Date: Mon Feb 22 16:40:28 2010
New Revision: 78312
Log:
Clarify description of three-argument pow for Decimal types: the exponent of the result is always 0.
Modified:
python/trunk/Doc/library/decimal.rst
Modified: python/trunk/Doc/library/decimal.rst
==============================================================================
--- python/trunk/Doc/library/decimal.rst (original)
+++ python/trunk/Doc/library/decimal.rst Mon Feb 22 16:40:28 2010
@@ -1321,9 +1321,12 @@
- at least one of ``x`` or ``y`` must be nonzero
- ``modulo`` must be nonzero and have at most 'precision' digits
- The result of ``Context.power(x, y, modulo)`` is identical to the result
- that would be obtained by computing ``(x**y) % modulo`` with unbounded
- precision, but is computed more efficiently. It is always exact.
+ The value resulting from ``Context.power(x, y, modulo)`` is
+ equal to the value that would be obtained by computing ``(x**y)
+ % modulo`` with unbounded precision, but is computed more
+ efficiently. The exponent of the result is zero, regardless of
+ the exponents of ``x``, ``y`` and ``modulo``. The result is
+ always exact.
.. versionchanged:: 2.6
``y`` may now be nonintegral in ``x**y``.
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