offtopic? Math::BigFloat

C. Abney cabney at
Mon Dec 23 15:40:01 CST 2002

On Mon, 2002-12-23 at 13:09, C. Abney wrote:

> =8<======
>         if ( 0 > $X->bcmp(1) ) {
>                 my $N = $X->copy();
>                 $N->bone();
>                 $N->bdiv($X);
>                 return -Ln($N, $P);
>         }
>         $X->bfround( -$modP );
> =8<======
> This was necessary because the existing code was rounding my really
> small number to zero  But it wasn't doing it /explicitly/, rather as a
> consequence of assuming it was a normal sized number, and doing a normal
> division on it.  Also, $X->bfround( -$modP ) is evaluated twice if $X <
> 1 in the original code.  There's probably a more efficient way to

Well, duh!


Haven't tried it, though.  heheh.
Charles Abney
Polymorphism Research Laboratory, 0603
UCSD School of Medicine
9500 Gilman Dr.
La Jolla, CA 92093-0603

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