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Diffstat (limited to 'Doc/library/math.rst')
| -rw-r--r-- | Doc/library/math.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/library/math.rst b/Doc/library/math.rst index b153f21..0868e8e 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -96,6 +96,12 @@ Number-theoretic and representation functions: Return the fractional and integer parts of *x*. Both results carry the sign of *x*, and both are floats. +.. function:: sum(iterable) + + Return an accurate floating point sum of values in the iterable. Avoids + loss of precision by tracking multiple intermediate partial sums. The + algorithm's accuracy depends on IEEE-754 arithmetic guarantees and the + typical case where the rounding mode is half-even. .. function:: trunc(x) |