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authorChristian Heimes <christian@cheimes.de>2008-01-03 22:32:26 (GMT)
committerChristian Heimes <christian@cheimes.de>2008-01-03 22:32:26 (GMT)
commiteebb79cc690e8ab02cb7f630cfbc046df2c0f4da (patch)
treee6eae18d02015f5adb8535f3b69cf33e1ba9eb51 /Doc/library/math.rst
parent000a074c955a1964959ee908300ef49b41170a06 (diff)
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Added copysign(x, y) function to the math module
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diff --git a/Doc/library/math.rst b/Doc/library/math.rst
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--- a/Doc/library/math.rst
+++ b/Doc/library/math.rst
@@ -31,6 +31,14 @@ Number-theoretic and representation functions:
should return an :class:`Integral` value.
+.. function:: copysign(x, y)
+
+ Return *x* with the sign of *y*. ``copysign`` copies the sign bit of an IEEE
+ 754 float, ``copysign(1, -0.0)`` returns *-1.0*.
+
+ ..versionadded:: 2.6
+
+
.. function:: fabs(x)
Return the absolute value of *x*.