diff -r a91f0d4a2381 Doc/library/cmath.rst --- a/Doc/library/cmath.rst Wed Jul 02 08:37:22 2014 +0300 +++ b/Doc/library/cmath.rst Wed Jul 02 08:11:41 2014 +0100 @@ -149,13 +149,13 @@ .. function:: acosh(x) - Return the hyperbolic arc cosine of *x*. There is one branch cut, extending left - from 1 along the real axis to -∞, continuous from above. + Return the inverse hyperbolic cosine of *x*. There is one branch cut, + extending left from 1 along the real axis to -∞, continuous from above. .. function:: asinh(x) - Return the hyperbolic arc sine of *x*. There are two branch cuts: + Return the inverse hyperbolic sine of *x*. There are two branch cuts: One extends from ``1j`` along the imaginary axis to ``∞j``, continuous from the right. The other extends from ``-1j`` along the imaginary axis to ``-∞j``, continuous from the left. @@ -163,7 +163,7 @@ .. function:: atanh(x) - Return the hyperbolic arc tangent of *x*. There are two branch cuts: One + Return the inverse hyperbolic tangent of *x*. There are two branch cuts: One extends from ``1`` along the real axis to ``∞``, continuous from below. The other extends from ``-1`` along the real axis to ``-∞``, continuous from above. diff -r a91f0d4a2381 Modules/cmathmodule.c --- a/Modules/cmathmodule.c Wed Jul 02 08:37:22 2014 +0300 +++ b/Modules/cmathmodule.c Wed Jul 02 08:11:41 2014 +0100 @@ -192,7 +192,7 @@ PyDoc_STRVAR(c_acosh_doc, "acosh(x)\n" "\n" -"Return the hyperbolic arccosine of x."); +"Return the inverse hyperbolic cosine of x."); static Py_complex @@ -249,7 +249,7 @@ PyDoc_STRVAR(c_asinh_doc, "asinh(x)\n" "\n" -"Return the hyperbolic arc sine of x."); +"Return the inverse hyperbolic sine of x."); static Py_complex @@ -353,7 +353,7 @@ PyDoc_STRVAR(c_atanh_doc, "atanh(x)\n" "\n" -"Return the hyperbolic arc tangent of x."); +"Return the inverse hyperbolic tangent of x."); static Py_complex diff -r a91f0d4a2381 Modules/mathmodule.c --- a/Modules/mathmodule.c Wed Jul 02 08:37:22 2014 +0300 +++ b/Modules/mathmodule.c Wed Jul 02 08:11:41 2014 +0100 @@ -873,18 +873,18 @@ FUNC1(acos, acos, 0, "acos(x)\n\nReturn the arc cosine (measured in radians) of x.") FUNC1(acosh, m_acosh, 0, - "acosh(x)\n\nReturn the hyperbolic arc cosine (measured in radians) of x.") + "acosh(x)\n\nReturn the inverse hyperbolic cosine of x.") FUNC1(asin, asin, 0, "asin(x)\n\nReturn the arc sine (measured in radians) of x.") FUNC1(asinh, m_asinh, 0, - "asinh(x)\n\nReturn the hyperbolic arc sine (measured in radians) of x.") + "asinh(x)\n\nReturn the inverse hyperbolic sine of x.") FUNC1(atan, atan, 0, "atan(x)\n\nReturn the arc tangent (measured in radians) of x.") FUNC2(atan2, m_atan2, "atan2(y, x)\n\nReturn the arc tangent (measured in radians) of y/x.\n" "Unlike atan(y/x), the signs of both x and y are considered.") FUNC1(atanh, m_atanh, 0, - "atanh(x)\n\nReturn the hyperbolic arc tangent (measured in radians) of x.") + "atanh(x)\n\nReturn the inverse hyperbolic tangent of x.") static PyObject * math_ceil(PyObject *self, PyObject *number) { _Py_IDENTIFIER(__ceil__);