[Python-checkins] cpython (3.5): Issue #26114: Remove a reference to 'Numerical Recipes'.

[brett.cannon]

https://hg.python.org/cpython/rev/76eb752e5447
changeset:   99903:76eb752e5447
branch:      3.5
parent:      99900:bd9d5bc8bc95
user:        Brett Cannon <brett at python.org>
date:        Fri Jan 15 09:38:24 2016 -0800
summary:
  Issue #26114: Remove a reference to 'Numerical Recipes'.

While no copyright violation occurred, the license which
'Numerical Recipes' operates under is not amenable to Python,
so to prevent confusion it's easier to simply remove its mention.

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