https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93871
--- Comment #21 from Thomas Henlich <thenlich at gcc dot gnu.org> --- One should also ask: What is the least surprising way to implement the cotangent function? If someone uses a (non-standard) function bearing a name similar to "tangent", they probably expect a function similar in precision and runtime to the standard tangent function, and nothing which is more accurate in certain ranges, but which is also slower. For being able to use a construct like "y = a * cotan(x)" instead of "y = a / tan(x)" there should be no additional punishment aside from standard non-compliance.
