On Sunday 11 March 2007 10:31, Mark Dickinson wrote: > I get the following behaviour on Python 2.5 (OS > X 10.4.8 on PowerPC, in case it's relevant.) > > >>> x, y = 0.0, -0.0 > >>> x, y > > (0.0, 0.0) > > >>> x, y = -0.0, 0.0 > >>> x, y > > (-0.0, -0.0) > > I would have expected y to be -0.0 in the first > case, and 0.0 in the second. Should the above > be considered a bug, or is Python not expected > to honour signs of zeros? I'm working in a > situation involving complex arithmetic where > branch cuts, and hence signed zeros, are > important, and it would be handy if the above > code could be relied upon to do the right > thing. > > Mark
This works for some reason instead of x,y = -0.0, 0.0 clumpy but the results are right. x = -0.0 y= 0.0 x,y (-0.0, 0.0) jim-on-linux http:\\inqvista.com -- http://mail.python.org/mailman/listinfo/python-list
