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| author | Andrew Kuchling <amk@amk.ca> | 2014-02-16 11:11:25 -0500 |
|---|---|---|
| committer | Andrew Kuchling <amk@amk.ca> | 2014-02-16 11:11:25 -0500 |
| commit | 8cb1ec3274fff35a3613dd9fa8f0c99b4f472119 (patch) | |
| tree | 0feb034462e8c04ce23215922735d83bab094b0c /Modules/mathmodule.c | |
| parent | e5235f162449f5faf63381197f243ef8d51acd19 (diff) | |
| download | cpython-git-8cb1ec3274fff35a3613dd9fa8f0c99b4f472119.tar.gz | |
#12211: clarify math.copysign() documentation and docstring
Diffstat (limited to 'Modules/mathmodule.c')
| -rw-r--r-- | Modules/mathmodule.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c index 4b3e642ff6..00e2612fd3 100644 --- a/Modules/mathmodule.c +++ b/Modules/mathmodule.c @@ -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, |