Here's some code that does the right thing for me: 
#!perl -l

$, = ' ';

my @n = qw/ 1e-13 2e-14 3e-15 4e-16 /;
print sort @n;
print sort { $a <=> $b } @n;

@n = (1e-13, 2e-14, 3e-15, 4e-16);
print sort @n;
print sort { $a <=> $b } @n;

__END__

1e-13 2e-14 3e-15 4e-16
4e-16 3e-15 2e-14 1e-13
1e-13 2e-14 3e-15 4e-16
4e-16 3e-15 2e-14 1e-13

[download]

In reply to Re: sorting scientific numbers by trammell
in thread sorting scientific numbers by smahajan

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