Well, this works for me.

use strict;
use warnings;

my $base=2;
my $power=-12;
my $number = $base * (10**$power);
my $p = abs($power);
my $string=sprintf("%.${p}f", $number);
print $string;

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Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."

In reply to Re^7: help with sprintf by psini
in thread help with sprintf by lil_v

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