bpo-41205: Document Decimal power 0 to the 0 (GH-21386)

Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
2020-07-19 16:33:43 +05:30 · 2020-07-19 16:33:43 +05:30 · 10e466448f
parent 6bf3237379
commit 10e466448f
1 changed files with 3 additions and 0 deletions
--- a/Doc/library/decimal.rst
+++ b/Doc/library/decimal.rst
@ -1357,6 +1357,9 @@ In addition to the three supplied contexts, new contexts can be created with the
      The rounding mode of the context is used. Results are always correctly-rounded
      in the Python version.

+      ``Decimal(0) ** Decimal(0)`` results in ``InvalidOperation``, and if ``InvalidOperation``
+      is not trapped, then results in ``Decimal('NaN')``.
+
      .. versionchanged:: 3.3
         The C module computes :meth:`power` in terms of the correctly-rounded
         :meth:`exp` and :meth:`ln` functions. The result is well-defined but