How do I convert strings to floating number?

[Marcus Claesson]

Hi there,

I have a simple problem that I'm sure has been asked before (so why not
again ;))

I have a list like this:

1e-100
2e-100
1e-45
5e-10
1
10
20

and want to make correct assignments:

1e-100  SMALL
2e-100  SMALL
1e-45   BIGGER
5e-10   BIGGER
1       BIGGER
10      BIG
20      BIG

But with this code

while (<>) {
    chomp;
    if ($_ lt 1e-50) {
        print "$_\t SMALL\n";
    } elsif (($_ gt 1e-50) && $_ lt 5) {
        print "$_\t BIGGER\n";
    } elsif ($_ gt 5) {
        print "$_\t BIGGEST\n";
    }

I only get 

1e-100   SMALL
2e-100   BIGGER
1e-45    SMALL
5e-10    BIGGEST
1        SMALL
10       SMALL
20       BIGGER

which is not matematically correct. How do convert "floating strings" to
floating number? I thought "lt" would be the right one to choose...

Thanks in advance!
Marcus 


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