Take a look at this. 
#!/usr/bin/perl

use strict;

while( my $evalue = <DATA> ){
    chomp $evalue;
    if($evalue < 0.001){
        print "$evalue\n";
    }
}

__DATA__
1e-005
2e-090
0.00
0.67
1.0
4e-065

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In reply to Re: how to evaluate exponential notations and floating points by bichonfrise74
in thread how to evaluate exponential notations and floating points by BhariD

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