>>>>> "Robert" == Robert Dodier <robert.dodier at gmail.com> writes:
Robert> hello,
Robert> maxima simplifies atan(tan(x)) to x for any non-float x.
Robert> this is reported as SF bug # 1448605 .
Robert> (http://sourceforge.net/tracker/index.php?func=detail&aid=1448605&group_id=4933&atid=104933)
Robert> shouldn't x be pulled back into the range [- %pi/2, %pi/2] ?
Yes.
Perhaps it was caused by too much cut-and-paste? tan(atan(x))
simplifies to x, which is ok.
Ray