[Numpy-discussion] Log Arrays

Charles R Harris charlesr.harris@gmail....
Thu May 8 11:56:42 CDT 2008


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

> On Fri, May 9, 2008 at 1:25 AM, Charles R Harris
> <charlesr.harris@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
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