From: Mark Day <mday@...>
Date: 2007-05-05T04:34:52+09:00
Subject: Re: Help with bigbnum

On May 4, 2007, at 10:36 AM, Jason Roelofs wrote:

> You do realize the magnitude of number you're trying to calculate?  
> There IS
> a limit to how big even BigNum can go before deciding to crap out.  
> I'd like
> to see someone try this in Lisp. If that interpreter can't handle  
> it, then
> no language can.

Python 2.5 appears to have handled the expression easily enough (3-4  
seconds on my iMac Intel Core Duo).  Converting it to a string for  
display seems to be taking quite a long time, which isn't too  
surprising since it should have nearly 2 million decimal digits  
(according to log10(n)).

-Mark

> Jason
>
> On 5/4/07, Victor Reyes <victor.reyes@gmail.com> wrote:
>>
>> I am trying to use the following computation:  232582656(232582657-1)
>>
>> n = (2**32582656) * (2**32582657 - 1)
>>
>> I am getting the msg:
>>
>> perf.rb:5: warning: in a**b, b may be too big Infinity
>>
>> Any help will be appreciated.
>>
>> Thank you
>>
>> Victor
>>