Infinite-precision arithmetic

[John Vokey]

I have always found binary coded decimal (BCD) the simplest for this  
purpose, as it is directly extensible to any length, with only a few  
lines of code.  Please see any (low-level; i.e., machine-code) book  
on arithmetic algorithms.  They may not teach BCD anymore, but back  
in the day... (i.e., Earth still cooling, ...).

On 24-May-05, at 2:38 PM, use-revolution-request at lists.runrev.com wrote:

> You probably can find a long list of "ACM Programming Contest" long
> math algorithms.  At least when I was on our College's team, the ACM
> loved to put problems involving long math in the mix.  As far as I
> know every team had ready-to-go source for long-math operations just
> for that reason.  We only got burned by not being ready for this type
> of situation once before we made sure we did.