Thanks Everyone!! This should help.
On Sat, Nov 22, 2008 at 9:17 AM, Rob Dixon <[EMAIL PROTECTED]> wrote: > Rob Dixon wrote: > > > > Your arithmetic is odd. You say > > > > 9-4 = 2 > > > > and so your resulting list should be (2,4,2). If you want to subtract the > > previous result from the next item in your data list each time then this > will do > > the job. > > > > HTH, > > > > Rob > > > > > > use strict; > > use warnings; > > > > my @data = (2, 6, 9); > > my @delta = @data; > > my $prev = 0; > > > > $prev = $_ = $_-$prev for @delta; > > > > print "@delta\n"; > > > > **OUTPUT** > > > > 2 4 5 > > Jay's solution is very similar but preferable to mine. > > Rob > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > http://learn.perl.org/ > > >
