in reply to Re^2: Negative zero? There's gotta be a sprintf that undoes that, right?
in thread Negative zero? There's gotta be a sprintf that undoes that, right?

That's weird. I'm using ActivePerl 5.8.1. But I just tried it on 5.8.6 for Solaris, and got your result there. The fix is to add zero: 
    my $preround = 0 + sprintf ("%.5f",$example);

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