#!/usr/bin/perl use strict; use warnings; use Math::Big qw/fibonacci/; my $n=6; print scalar(fibonacci($n)), "\n"; print "".fibonacci($n), "\n"; #another way to force scalar context my @fibs = fibonacci($n); print "@fibs\n"; print $fibs[-1],"\n"; #NOT $n-1, [$n] same as [-1] here. foreach (1000,2000,3000) { #print "".fibonacci($_), "\n\n"; #prints HUGE numbers not shown below } __END__ prints: .....testing the fibonacci of 6, which is indeed 8.... 8 8 0 1 1 2 3 5 8 8