Issue #21902: Replace incorrect 'hyperbolic arc sine' (etc.) with 'inverse hyperbolic sine' (etc.). Remove meaningless reference to radians.
diff --git a/Modules/cmathmodule.c b/Modules/cmathmodule.c
index 5720678..26e7aba 100644
--- a/Modules/cmathmodule.c
+++ b/Modules/cmathmodule.c
@@ -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