Hello, the sentence "If x is positive infinity or negative infinity, a domain error occurs, and a NaN is returned" in the man page of acos(3) seems to be redundant, since it is followed by the more specific sentence "If x is outside the range [-1, 1], a domain error occurs, and a NaN is returned". In the man page of asin(3) there's only the latter sentence, therefore the former should probably be removed, if only for consistency reasons. I've verified this in 3.32 and in a current checkout from git. -- Simon Nicolussi, <Simon.Nicolussi@xxxxxxxxxxxxxxxxxx> http://homepage.uibk.ac.at/~csag9583/
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