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." ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:249736 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
