"Dan Bishop" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] | On Mar 11, 9:31 am, "Mark Dickinson" <[EMAIL PROTECTED]> 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) || IIRC, float.__repr__ just does whatever libc does. Have you tried | using printf("%g, %g", 0.0, -0.0) in a C program?
Detailed FP behavior like this is system (and yes, libc) dependent. On WinXP IDLE 1.1.3 >>> x,y = 0.0, -0.0 >>> x,y (0.0, 0.0) >>> x,y = -0.0, 0.0 >>> x,y (0.0, 0.0) >>> -0.0 0.0 Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
