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-rw-r--r--Doc/library/functions.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 64c9569..2c0ea71 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1262,7 +1262,8 @@ are always available. They are listed here in alphabetical order.
closest multiple of 10 to the power minus *ndigits*; if two multiples are
equally close, rounding is done toward the even choice (so, for example,
both ``round(0.5)`` and ``round(-0.5)`` are ``0``, and ``round(1.5)`` is
- ``2``). The return value is an integer if called with one argument,
+ ``2``). Any integer value is valid for *ndigits* (positive, zero, or
+ negative). The return value is an integer if called with one argument,
otherwise of the same type as *number*.
.. note::