khwilson commented on code in PR #44630:
URL: https://github.com/apache/arrow/pull/44630#discussion_r1871714072


##########
cpp/src/arrow/compute/kernels/scalar_arithmetic.cc:
##########
@@ -1212,6 +1298,16 @@ const FunctionDoc acos_checked_doc{"Compute the inverse 
cosine",
                                     "to return NaN instead, see \"acos\"."),
                                    {"x"}};
 
+const FunctionDoc acosh_doc{"Compute the inverse hyperbolic cosine",
+                            ("NaN is returned for invalid input values;\n"

Review Comment:
   I was following the convention of the other inverse trig functions. Should 
we switch their docs at the same time to specify their ranges?



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