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Diffstat (limited to 'Doc/library/functions.rst')
| -rw-r--r-- | Doc/library/functions.rst | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index 49fd77d..48efff5 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -915,10 +915,13 @@ available. They are listed here in alphabetical order. .. function:: round(x[, n]) Return the floating point value *x* rounded to *n* digits after the decimal - point. If *n* is omitted, it defaults to zero. The result is a floating point - number. Values are rounded to the closest multiple of 10 to the power minus - *n*; if two multiples are equally close, rounding is done away from 0 (so. for - example, ``round(0.5)`` is ``1.0`` and ``round(-0.5)`` is ``-1.0``). + point. If *n* is omitted, it defaults to zero. Values are rounded to the + closest multiple of 10 to the power minus *n*; 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``). Delegates to ``x.__round__(n)``. + + .. versionchanged:: 2.6 .. function:: set([iterable]) @@ -1064,6 +1067,14 @@ available. They are listed here in alphabetical order. operators such as ``super(C, self)[name]``. +.. function:: trunc(x) + + Return the :class:`Real` value *x* truncated to an :class:`Integral` (usually + a long integer). Delegates to ``x.__trunc__()``. + + .. versionadded:: 2.6 + + .. function:: tuple([iterable]) Return a tuple whose items are the same and in the same order as *iterable*'s |