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gh-141004: Document Py_MATH_{E, PI, TAU} constants (#141373)

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Stan Ulbrych 2025-11-12 16:37:54 +00:00 • committed by GitHub
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Doc/c-api/float.rst
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@ -99,6 +99,11 @@ Floating-Point Objects
the C11 standard ``<math.h>`` header.
.. c:macro:: Py_MATH_E
The definition (accurate for a :c:expr:`double` type) of the :data:`math.e` constant.
.. c:macro:: Py_MATH_El
High precision (long double) definition of :data:`~math.e` constant.
@ -106,6 +111,11 @@ Floating-Point Objects
.. deprecated-removed:: 3.15 3.20
.. c:macro:: Py_MATH_PI
The definition (accurate for a :c:expr:`double` type) of the :data:`math.pi` constant.
.. c:macro:: Py_MATH_PIl
High precision (long double) definition of :data:`~math.pi` constant.
@ -113,6 +123,13 @@ Floating-Point Objects
.. deprecated-removed:: 3.15 3.20
.. c:macro:: Py_MATH_TAU
The definition (accurate for a :c:expr:`double` type) of the :data:`math.tau` constant.
.. versionadded:: 3.6
.. c:macro:: Py_RETURN_NAN
Return :data:`math.nan` from a function.