DEBSOURCES
Skip Quicknav
sources / ruby1.9 / 1.9.0.2-9lenny1 / sample / fib.pl
1234567891011
sub fib { my($n)=@_; if ($n<2) { return $n; } else { return fib($n-2)+fib($n-1); } } print fib(20), "\n";