for my $num ( 0 .. 101 ) {
   $num += 0.005;
   printf "%.2f\n", $num;
}

##</code><code>##

0.01
1.00
2.00
3.00
..
8.01
..


##</code><code>##

for my $num ( 0 .. 101 ) {
   $num += 0.0005;
   my $result = sprintf "%.3f", $num;
   print "$result\n";
}