Math_Fraction

Hi folks, I just finished with a simple package for manipulating fractions (n = x/y, where x and y are integers). The draft is in the PEPr system: http://pear.php.net/pepr/pepr-proposal-show.php?id=168 I followed the interface of Math_Complex, i.e. I have two classes: Fraction and FractionOp (static). The second one is used to define all the possible arithmetic operations with fractions: addition, substracion, multiplication and division. It also have 3 methods for comparing fractions: eq(), lt() and gt(). I'm wish to have some comments and oppinions on the following topics before moving from "draft" to "proposal": - I'm using "friendly" behaviour when creating new fraction - I'm just converting the numerator and the denominator to integer. - I added LCM (least common multiple) and GCD (greatest common divisor) to the Math_FractionOp class in order to implement addition, substraction and comparing methods. Maybe it would be useful to "upper" these two to a higher "Math" level because they're not for fractions only, so their place is somewhere else in the Math directory. - I'm invoking the simplify() method after each arithmetic operation - for example when adding 1/6 + 3/6, it returns 2/3 and not 4/6. Maybe there could be a third parameter to each method for allowing the user to tell whether or not to simplify and to have the "simplify" behaviour by default? - Currently fraction with denominator 1 are returned as they are, for example 10/1 instead of 10 (int). I think that's the right way. - Currently new fraction are created that way: new Fraction($numerator, $denominator);, but maybe it might be useful to have some alternative ways, for example: new Fraction("$numerator/$denominator"); new Fraction($numerator) - and assuming denominator is 1 by default; etc... - I'm thinking also of a generic Math_FractionOp method that will accept the operand as a string: "+", "-", "*", "/", "<", ">", "="...and maybe more combinations, and thus allowing the code to be more readable: $n = Math_FractionOp::op($n1, "+", $n2);, or so. However that's an advanced and important topic not only for Math_Fraction. For eaxmple in Perl there's a possibility to overwrite operators - something that adds another level of unclearness, but something similar in PEAR might be useful. Any other comments, oppinions and advises would be also welcome. Regards, Kouber Saparev