[Python-checkins] cpython (merge 3.5 -> default): Merge for issue #26114
brett.cannon
python-checkins at python.org
Fri Jan 15 12:39:13 EST 2016
https://hg.python.org/cpython/rev/8ad701463cd7
changeset: 99904:8ad701463cd7
parent: 99901:32a4e7b337c9
parent: 99903:76eb752e5447
user: Brett Cannon <brett at python.org>
date: Fri Jan 15 09:39:06 2016 -0800
summary:
Merge for issue #26114
files:
Modules/mathmodule.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -400,9 +400,8 @@
Implementations of the error function erf(x) and the complementary error
function erfc(x).
- Method: following 'Numerical Recipes' by Flannery, Press et. al. (2nd ed.,
- Cambridge University Press), we use a series approximation for erf for
- small x, and a continued fraction approximation for erfc(x) for larger x;
+ Method: we use a series approximation for erf for small x, and a continued
+ fraction approximation for erfc(x) for larger x;
combined with the relations erf(-x) = -erf(x) and erfc(x) = 1.0 - erf(x),
this gives us erf(x) and erfc(x) for all x.
--
Repository URL: https://hg.python.org/cpython
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