As nuance pointed out above, your routine is not mathematically correct. Here is my attempt: 
sub round 
{
    my( $num, $place )= @_;
    $num = $num/$place;
    my $calc = int( $num + 0.5 * ( $num <=> 0 ) );
    $calc += (0 <=> $num) if( $calc % 2 and 0.5 == abs( int($num) - $n
+um ) );
    return $calc * $place
}

[download]
Oh, and don't bother debating the validity of rounding to the nearest even. I wasted several hours trying to do that the last time around.

NOTE: I think there is a bug in that code, but I'm tired and I couldn't place it.

In reply to RE: Round a Number to Any Place by Adam
in thread Round a Number to Any Place by reptile

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