On Thu, Apr 20, 2006 at 09:23:36AM -0400, Peter Todd wrote:
> On Thu, Apr 20, 2006 at 02:54:52PM +0200, YAP wrote:
> > What is 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF (128 bits) in decimal?  How go a
> > head an calculate big numbers like this.
> 
> If you have Linux, the bc calculator is great for this sort of thing:
> 
> pete@gw:~$ bc
> bc 1.06
> Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
> This is free software with ABSOLUTELY NO WARRANTY.
> For details type `warranty'.
> ibase=16
> FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
> 340282366920938463463374607431768211455
> quit
> pete@gw:~$
> 
> It can work with arbitrarily large numbers, computing crazy stuff like
> 2^(2^16) works. 

This is how I computed the answer earlier. I double checked it with
2^128. 

bc is quite an amazing calculator.

BAJ
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