On Thu, Apr 1, 2010 at 1:17 AM, Charles R Harris <charlesr.har...@gmail.com> wrote: > > > On Wed, Mar 31, 2010 at 6:08 PM, <josef.p...@gmail.com> wrote: >> >> On Wed, Mar 31, 2010 at 7:37 PM, Warren Weckesser >> <warren.weckes...@enthought.com> wrote: >> > T J wrote: >> >> On Wed, Mar 31, 2010 at 1:21 PM, Charles R Harris >> >> <charlesr.har...@gmail.com> wrote: >> >> >> >>> Looks like roundoff error. >> >>> >> >>> >> >> >> >> So this is "expected" behavior? >> >> >> >> In [1]: np.logaddexp2(-1.5849625007211563, -53.584962500721154) >> >> Out[1]: -1.5849625007211561 >> >> >> >> In [2]: np.logaddexp2(-0.5849625007211563, -53.584962500721154) >> >> Out[2]: nan >> >> >> > >> > Is any able to reproduce this? I don't get 'nan' in either 1.4.0 or >> > 2.0.0.dev8313 (32 bit Mac OSX). In an earlier email T J reported using >> > 1.5.0.dev8106. >> >> >> >> >>> np.logaddexp2(-0.5849625007211563, -53.584962500721154) >> nan >> >>> np.logaddexp2(-1.5849625007211563, -53.584962500721154) >> -1.5849625007211561 >> >> >>> np.version.version >> '1.4.0' >> >> WindowsXP 32 >> > > What compiler? Mingw?
yes, mingw 3.4.5. , official binaries release 1.4.0 by David Josef > > Chuck > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion > > _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
