Issue #21902: Replace incorrect 'hyperbolic arc sine' (etc.) with 'inverse hyperbolic sine' (etc.). Remove meaningless reference to radians.

1 files changed, 3 insertions, 3 deletions

diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 7f094ff..910d5ea 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -873,18 +873,18 @@ math_2(PyObject *args, double (*func) (double, double), char *funcname)
 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__);