Hi, I used already the classes of the analysis package: http://commons.apache.org/math/userguide/analysis.html
There is already a fine class for Polynomial Functions which can calculate the derivation: PolynomialFunction.derivative() I would like to suggest a class called "RationalFunction" which can do almost the same but for (you guessed it) Rational Functions. Suggested methods are: derivative() , add(RationalFunction r), a.s.o. http://en.wikipedia.org/wiki/Rational_function If this is something which you would like to have I will start coding it to provide a patch. The next thing is "Trigonometric Functions" and their derivatives: http://en.wikipedia.org/wiki/Trigonometric_function_derivations#Derivatives_of_trigonometric_functions It would also be nice to have classes for that type of function. - Bernhard --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org