oops sorry... the previous UDF calls this one:
function getGCD(a, b) {
var remainder = 0;
while (b NEQ 0) {
remainder = a MOD b;
a = b;
b = remainder;
}
return abs(a);
}
On 8/14/06, Charlie Griefer <[EMAIL PROTECTED]> wrote:
> wrote this over 3 years ago...never actually put it into production
> use, so there are no guarantees :)
>
> but if it doesn't work, at least it might give you a foundation to improve
> upon.
>
> /** ************
> *
> * Converts a decimal to a fractional number
> * version 1.0
> *
> * @param number Decimal value to be converted to a fractional value
> * @param mixedNum YES | 1 if fraction greater than 1, returns
> mixed numerals
> * NO | 0 if fraction greater
> than 1, returns a fraction
> * @return fraction Returns a fractional value as a string
> *
> * @author Charlie Griefer ([EMAIL PROTECTED])
> * @version 1.0, March 24, 2003
> *
> * Algorithm obtained from http://zend.com/codex.php?id=175&single=1
> * Original Author of PHP Function: J. A. Greant ([EMAIL PROTECTED])
> *
> * Known Issues:
> * ------------
> *
> * 25 Mar 2003
> * The value passed to the function can have no more than 9 decimal places,
> * otherwise CF throws an error 'Cannot convert 10000000000 to integer.'
> *
> ************ **/
>
> function toFraction(number, mixedNum) {
>
> // variable declarations
> var posNeg = 1;
> var wholeNum = "";
> var numerator = "";
> var denominator = "";
> var fraction = "";
>
> // make sure the decimal is not in the first or last position
> if ((left(trim(number), 1)) IS '.') number = "0" & number;
> if ((right(trim(number), 1)) IS '.') number = number & "0";
>
> // return if invalid number (return 0) or an integer (return
> integer/1)
> if (NOT isNumeric(number)) return 0;
> if ((NOT find('.', number)) OR (NOT listLast(number, '.'))) {
> fraction = int(number) & "/1";
> return fraction;
> }
>
> if (number LT 0) {
> posNeg = -1;
> }
>
> wholeNum = abs(val(listFirst(number, ".")));
> numerator = abs(val(listLast(number, ".")));
> denominator = "1";
>
> for (i=1; i LTE len(numerator); i=i+1) {
> denominator = denominator & "0";
> }
>
> gcd = getGCD(numerator, denominator, number);
>
> numerator = numerator/gcd;
> denominator = denominator/gcd;
>
> if (mixedNum AND wholeNum) {
> fraction = posNeg * wholeNum & " <span
> style=""font-size:8px;""><sup>" & abs(numerator) & "</sup>/<sub>" &
> denominator & "</sub></span>";
> } else {
> numerator = wholeNum * denominator + numerator;
> fraction = posNeg * numerator & "/" & denominator;
> }
> return fraction;
> }
>
> On 8/14/06, Andy Matthews <[EMAIL PROTECTED]> wrote:
> > Does anyone happen to have a UDF that would convert decimals to their
> > fractional equivalents?
> >
> > I'm working on a cooking website and I'm storing the quantities as floats,
> > but I'd like to display them as fractions for American cooks, while still
> > retaining the ability to display as decimals if needed.
>
> --
> Charlie Griefer
>
> ================================================
> "...All the world shall be your enemy, Prince with a Thousand Enemies,
> and whenever they catch you, they will kill you. But first they must catch
> you, digger, listener, runner, prince with a swift warning.
> Be cunning and full of tricks and your people shall never be destroyed."
>
--
Charlie Griefer
================================================
"...All the world shall be your enemy, Prince with a Thousand Enemies,
and whenever they catch you, they will kill you. But first they must catch
you, digger, listener, runner, prince with a swift warning.
Be cunning and full of tricks and your people shall never be destroyed."
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