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author | Mariatta Wijaya <mariatta.wijaya@gmail.com> | 2017-02-06 20:16:58 -0800 |
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committer | Mariatta Wijaya <mariatta.wijaya@gmail.com> | 2017-02-06 20:16:58 -0800 |
commit | da79bcf8ac7ae72218ab023e1ed54390bc1a3a27 (patch) | |
tree | 74845e2dbd9521d9748b9c32f1922f4123083bf3 /Doc/library/cmath.rst | |
parent | e3c7e835bdfc97750eb9b7fc0ad2493108c2d438 (diff) | |
parent | 1fe806ac56f8b83694d24ab604eb695d00bc8497 (diff) | |
download | cpython-da79bcf8ac7ae72218ab023e1ed54390bc1a3a27.tar.gz |
Issue #29371: merge with 3.5
Diffstat (limited to 'Doc/library/cmath.rst')
-rw-r--r-- | Doc/library/cmath.rst | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst index e113ffc3e5..c819a667ec 100644 --- a/Doc/library/cmath.rst +++ b/Doc/library/cmath.rst @@ -253,6 +253,40 @@ Constants The mathematical constant *e*, as a float. +.. data:: tau + + The mathematical constant *τ*, as a float. + + .. versionadded:: 3.6 + +.. data:: inf + + Floating-point positive infinity. Equivalent to ``float('inf')``. + + .. versionadded:: 3.6 + +.. data:: infj + + Complex number with zero real part and positive infinity imaginary + part. Equivalent to ``complex(0.0, float('inf'))``. + + .. versionadded:: 3.6 + +.. data:: nan + + A floating-point "not a number" (NaN) value. Equivalent to + ``float('nan')``. + + .. versionadded:: 3.6 + +.. data:: nanj + + Complex number with zero real part and NaN imaginary part. Equivalent to + ``complex(0.0, float('nan'))``. + + .. versionadded:: 3.6 + + .. index:: module: math Note that the selection of functions is similar, but not identical, to that in @@ -276,5 +310,3 @@ 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. - - |