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authorGuido van Rossum <guido@dropbox.com>2016-08-15 16:12:52 (GMT)
committerGuido van Rossum <guido@dropbox.com>2016-08-15 16:12:52 (GMT)
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Issue #12345: Add mathemathcal constant tau to math and cmath.
Patch by Lisa Roach. See also PEP 628.
Diffstat (limited to 'Doc/library/cmath.rst')
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1 files changed, 4 insertions, 2 deletions
diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst
index 62ddb6b..f04f8d0 100644
--- a/Doc/library/cmath.rst
+++ b/Doc/library/cmath.rst
@@ -253,6 +253,10 @@ Constants
The mathematical constant *e*, as a float.
+.. data:: tau
+
+ The mathematical constant *τ*, as a float.
+
.. index:: module: math
Note that the selection of functions is similar, but not identical, to that in
@@ -276,5 +280,3 @@ cuts for numerical purposes, a good reference should be the following:
Kahan, W: Branch cuts for complex elementary functions; or, Much ado about
nothing's sign bit. In Iserles, A., and Powell, M. (eds.), The state of the art
in numerical analysis. Clarendon Press (1987) pp165-211.
-
-