Fernando,
Commons-Math, I think, is looking for an open-source contribution for formulae... there are several around. (e.g. HartMath).
That's not sufficient anyways, you want to have input-syntax parsing...
At least to combine these two purposes, I've assembled something called JomeConsole which should contain what you want...
- Jome is a GUI component but can also simply be used to convert a linear syntax into OpenMath
- the OpenMath is then used by an evaluator to compute values... currently the evaluator is quite rudimentary (integer +,-,*,/) but that's easy to extend...
See http://www.activemath.org/projects/client/JomeConsole/
(note the downloads are wrong there... use the cvs checkout!)
JomeConsole is under MPL, Jome is under LGPL, JDOM is also used, under a BSD-like, as well as the Inria OpenMath library.
hope that'll help.
paul
Le 9 sept. 04, � 21:21, Fernando Matias Valad�o a �crit :
Thank you very much, Shing! That's exactly what I need, but unfortunately, it's not open source ;( Does anybody know another API/framework like JEP that is open source? Thanks!
Fernando
----- Original Message ----- From: "Shing Hing Man" <[EMAIL PROTECTED]> To: "Jakarta Commons Users List" <[EMAIL PROTECTED]>; "Fernando_Matias_Valad�o" <[EMAIL PROTECTED]> Sent: Thursday, September 09, 2004 3:55 PM Subject: Re: Computing values for f(x,y) [math]
Messenger - all new features - even more fun! http://uk.messenger.yahoo.comI do not know whether common Maths allow you to evaluate a user defined function. But you certainly can do it using Java Experssion Parser http://www.singularsys.com/jep/
Shing
--- Fernando_Matias_Valad�o <[EMAIL PROTECTED]> wrote:Hello, people!
I'm developing a Java project that I need to do something like this: 1 - Define a function like this, for example: f(x,y) = 2*x + y/3 + 5 2 - Compute a value for this function when I have values for "x" and "y"
I found out in thd docs that I can only find the roots for a function. Does anybody know if I can do this evalutation with Commons Math? If I can't, do you know any other API/framework that supports something like this? Thanks in advance
Fernando
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