Mark Dickinson <dicki...@gmail.com> added the comment: Well, that's floating-point arithmetic for you. log(x, y) simply computes log(x)/log(y) behind the scenes; since both log computations and the floating-point division can introduce errors, the result will frequently not be correctly rounded.
I don't really see the benefit of special-casing log(x, 10). In what circumstances does it matter that log(x, 10) != log10(x)? I could understand people being upset that log(10**n, 10) doesn't return n exactly, but that's what log10 is there for. See also the discussion in issue 3724. ---------- nosy: +marketdickinson _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue6765> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
