How about this then? 
#!/usr/local/bin/perl5 -w
use strict;

for (my $i = 20 ; $i >= 1 ; $i -= 1){
  printf "%f\n", $i/10;
}

[download]
It produces nice output: 
2.000000
1.900000
1.800000
1.700000
1.600000
1.500000
1.400000
1.300000
1.200000
1.100000
1.000000
0.900000
0.800000
0.700000
0.600000
0.500000
0.400000
0.300000
0.200000
0.100000

[download]
But it's a rather horrible solution, really... :-)

In reply to Re: Reduce from 2 to 0.1. by jink
in thread Reduce from 2 to 0.1. by goichi

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