Mark Dickinson <dicki...@gmail.com> added the comment: > brave or foolhardy enough to try to figure out what all of the special case > results *should* be for complex pow
Addendum: even the C standards give up at this point. For everything else the special cases are spelled out in detail, but for cpow, from §G.6.4.1 of C17 (in Annex G), we have: > The cpow functions raise floating-point exceptions if appropriate for the > calculation of the parts of the result, and may also raise spurious > floating-point exceptions. And that's it. (Well, not quite: there's a footnote, which says: > This allows cpow(z, c) to be implemented as cexp(cclog(z)) without precluding > implementations that treat special cases more carefully. ) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44698> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
