Significant figures calculation

[Lalitha Prasad K]

In numerical analysis there is this concept of machine zero, which is
computed like this:

e=1.0
while 1.0+e > 1.0:
    e=e/2.0
print e

The number e will give you the precision of floating point numbers.

Lalitha Prasad

On Sun, Jun 26, 2011 at 9:05 PM, Harold <dadapapa at googlemail.com> wrote:

> > >I'm curious.  Is there a way to get the number of significant digits
> > >for a particular Decimal instance?
> >
> > Yes:
> >
> > def sigdig(x):
> >     "return the number of significant digits in x"
> >     return len(x.as_tuple()[1])
>
> Great! that's exactly what I needed.
> thanks Chris!
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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