Neat, I like it!
Is this the best way to do simple integer round-ups? E.g. 3.2 -> 4? I've been using: $nines = 1 - 1/1e10; $value = 3.2; $roundedvalue = int($value + $nines); ... but it looks like $roundedvalue = $value + (-$value % 1) might be better??? - B > On Aug 19, Bryan Harris said: > >> Is there a simple formula to round some value X up to the next multiple of >> some other value T? > > Generally speaking, you can do: > > $x + (-$x % $t) > > For 10 to round up to the next multiple of 3, it's 10 + (-10 % 3) which is > 10 + 2 = 12. Likewise, for negative numbers: -14 to round up to the next > multiple of 5 is -14 + (14 % 5) which is -14 + 4 = -10. > > To round down, it's simply: > > $x - ($x % $t) -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
