offtopic? Math::BigFloat
C. Abney
cabney at ucsd.edu
Mon Dec 23 15:40:01 CST 2002
~sdpm~
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!
$X->bpow(-1);
Haven't tried it, though. heheh.
--
Charles Abney
Polymorphism Research Laboratory, 0603
UCSD School of Medicine
9500 Gilman Dr.
La Jolla, CA 92093-0603
~sdpm~
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