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Diffstat (limited to 'Doc/whatsnew/3.2.rst')
| -rw-r--r-- | Doc/whatsnew/3.2.rst | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/Doc/whatsnew/3.2.rst b/Doc/whatsnew/3.2.rst index b900e77..78d3105 100644 --- a/Doc/whatsnew/3.2.rst +++ b/Doc/whatsnew/3.2.rst @@ -1062,13 +1062,16 @@ The :func:`~math.erf` function computes a probability integral or `Gaussian error function <https://en.wikipedia.org/wiki/Error_function>`_. The complementary error function, :func:`~math.erfc`, is ``1 - erf(x)``: ->>> from math import erf, erfc, sqrt ->>> erf(1.0/sqrt(2.0)) # portion of normal distribution within 1 standard deviation -0.682689492137086 ->>> erfc(1.0/sqrt(2.0)) # portion of normal distribution outside 1 standard deviation -0.31731050786291404 ->>> erf(1.0/sqrt(2.0)) + erfc(1.0/sqrt(2.0)) -1.0 +.. doctest:: + :options: +SKIP + + >>> from math import erf, erfc, sqrt + >>> erf(1.0/sqrt(2.0)) # portion of normal distribution within 1 standard deviation + 0.682689492137086 + >>> erfc(1.0/sqrt(2.0)) # portion of normal distribution outside 1 standard deviation + 0.31731050786291404 + >>> erf(1.0/sqrt(2.0)) + erfc(1.0/sqrt(2.0)) + 1.0 The :func:`~math.gamma` function is a continuous extension of the factorial function. See https://en.wikipedia.org/wiki/Gamma_function for details. Because @@ -1384,7 +1387,7 @@ guaranteed not to block when :func:`select.select` says a pipe is ready for writing. >>> import select ->>> select.PIPE_BUF +>>> select.PIPE_BUF # doctest: +SKIP 512 (Available on Unix systems. Patch by Sébastien Sablé in :issue:`9862`) |