Re: bignum 0.22

In article <Pine.LNX.4.64.0707041540080.19628@xxxxxx>, Gamo wrote:
I found a problem related with calculating Catalan's numbers

#!/usr/local/bin/perl -w

use bignum;

^^
use bingnum qw(p 0); #instead see perldoc bignum;

while (1){
$n++;
# $Cat = (fact(2*$n))/((n+1)!n!)
$Cat = (fact(2*$n))/(($n+1)*fact($n)**2);
print "$Cat\n";
last if length $Cat > 78;
}



To use this algoritm the precison must be 0 because all the numbers are
integers.

133 =
43247909631719355347185999181748231619129200590055369794426007640095877
732860
134 =
17106950920991211670664684120780411618233328233399679607572954133193480
5254424
135 =
67673085260979940285423529830734275372128901393889909035840068556309503
8432942
136 =
26772855628796443528977776035224800913645156609845496859434538071182300
06063172


.