On Sat, Aug 18, 2012 at 9:06 AM, Robert Bradshaw <rober...@gmail.com> wrote:
> BBP won't help you compute the decimal digits of pi.

And this has nothing to do with pi: knowing some of the hexadecimal
digits of a number does not allow you to find some of the decimal
digits.  Base conversion requires you to know all the digits from the
fraction point to the part you are interested in.

(Try it yourself: I have a number N whose hexadecimal expansion is
*3A*, where I don't know the * digits.  What information does this
give you about the decimal expansion?)


-- 
Best,
Alex

--
Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne
http://aghitza.org

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