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From Bernhard Gr├╝newaldt <bernh...@gruenewaldt.net>
Subject [math] suggesting rational function and trigonometric functions classes
Date Tue, 17 Mar 2009 16:01:32 GMT
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


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