[Numpy-discussion] Log Arrays

Charles R Harris charlesr.harris at gmail.com
Thu May 8 12:56:42 EDT 2008


On Thu, May 8, 2008 at 10:52 AM, David Cournapeau <cournape at gmail.com>
wrote:

> On Fri, May 9, 2008 at 1:25 AM, Charles R Harris
> <charlesr.harris at gmail.com> wrote:
> >
>
> >
> > But to expand on David's computation... If the numbers are stored without
> > using logs, i.e., as the exponentials, then the sum is of the form:
> >
> > x_1*2**y_1 + ... + x_i*2**y_i
>
> You missed the part on parametric models: in parametric settings, your
> x_i are often exponential,


I'm talking IEEE floating point. The x_i are never exponentials.

Chuck
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/numpy-discussion/attachments/20080508/2031fc0b/attachment.html>


More information about the NumPy-Discussion mailing list