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#12211: clarify math.copysign() documentation and docstring

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Andrew Kuchling 2014-02-16 11:11:25 -05:00
parent e5235f1624
commit 8cb1ec3274
2 changed files with 10 additions and 3 deletions
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6
Modules/mathmodule.c
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@ -906,7 +906,11 @@ PyDoc_STRVAR(math_ceil_doc,
"This is the smallest integral value >= x.");
FUNC2(copysign, copysign,
"copysign(x, y)\n\nReturn x with the sign of y.")
"copysign(x, y)\n\nReturn a float with the magnitude (absolute value) "
"of x but the sign \nof y. On platforms that support signed zeros, "
"copysign(1.0, -0.0) \nreturns -1.0.\n\n"
"If x is NaN, y is ignored and NaN is returned. If y is NaN, it is\n"
"treated as positive.")
FUNC1(cos, cos, 0,
"cos(x)\n\nReturn the cosine of x (measured in radians).")
FUNC1(cosh, cosh, 1,