On Tue, 8 Oct 2002, Paul Golds wrote:
> On Tue, Oct 08, 2002 at 12:11:38PM +0100, Shevek wrote:
> > > d(x,y) = (x1 - y1)^2 + (x2 - y2)^2 + (x3 - y3)^2
> > The point being you don't need to square either, in which case you do get
>
> > a different ball.
>
> Surely you do need to square, or something with a (for example) difference
No, an absolute value is sufficient.
> of 10 on x, -10 on y, and 0 on z evaluates to a d(x,y)= 10 + -10 + 0 = 0.
>
> A metric of zero should indicate a perfect match, and this happens whenever
> dx+dy+dz = 0.
>
> Errr.. this is broken.
>
> Paul
--
Shevek
I am the Borg.
sub AUTOLOAD{my$i=$AUTOLOAD;my$x=shift;$i=~s/^.*://;print"$x\n";eval
qq{*$AUTOLOAD=sub{my\$x=shift;return unless \$x%$i;&{$x}(\$x);};};}
foreach my $i (3..65535) { &{'2'}($i); }
