I think the better idea would be to promote commons-math to it's own top-level project. It's a very impressive math library, and more active than some of the other commons projects.
If made a top-level project then we could make subprojects like a parser, GUI, etc. Thoughts? Bill- On Jul 27, 2014 7:34 PM, "Mansour Al Akeel" <mansour.alak...@gmail.com> wrote: > William, > Thank you a lot. > > Is there building instructions ? > > Are there any interest in creating/adding these efforts as > commons-math subproject. > I understand and agree with the point that a parser is outside of the > scope of commons-math, but may be we can create a subproject > "commons-math-sandbox" or "commons-math-ext" or > "commons-math-optional", that will host efforts and project related > but does not fit the scope. This will separate the concerns and allow > those who need this functionality to find it easily, at the same time > it will give the project a home, and make it available for wider > users. > > Is this a valid suggestion ? > > > > > On Mon, Jul 21, 2014 at 8:39 AM, William Speirs <wspe...@apache.org> > wrote: > > Errr... nothing at the moment, but I'll make it Apache2 :-) > > > > Bill- > > > > > > On Mon, Jul 21, 2014 at 8:29 AM, Paul Libbrecht <p...@hoplahup.net> > wrote: > > > >> Coool. License? > >> > >> paul > >> > >> > >> On 21 juil. 2014, at 14:26, William Speirs <wspe...@apache.org> wrote: > >> > >> > It's certainly incomplete, but I started working on a CAS (Computer > >> Algebra > >> > System: http://en.wikipedia.org/wiki/Computer_algebra_system) that > was > >> > "backed" by commons-math: https://github.com/wspeirs/math > >> > > >> > The JJT (parser file for JavaCC) file can be found here, and is fairly > >> > complete if I remember correctly: > >> > > >> > https://raw.githubusercontent.com/wspeirs/Math/master/src/main/java/com/educatedsolutions/parser/Math.jjt > >> > > >> > I'd be happy to help you with it further and/or accept pull requests > to > >> > improve it :-) > >> > > >> > Bill- > >> > > >> > > >> > On Mon, Jul 21, 2014 at 1:59 AM, Ted Dunning <ted.dunn...@gmail.com> > >> wrote: > >> > > >> >> On Sun, Jul 20, 2014 at 9:18 PM, Mansour Al Akeel < > >> >> mansour.alak...@gmail.com > >> >>> wrote: > >> >> > >> >>> As Luc said, it will big project to write a parser that takes any > >> >>> equation as a string, and generate the matrix (2-dimensional array) > to > >> >>> feed it into Commons Math. > >> >>> > >> >> > >> >> > >> >> It actually isn't a big project. > >> >> > >> >> See http://www.antlr.org/ > >> >> > >> >> The simplest example they give there is this one: > >> >> > >> >> *grammar Expr;* > >> >> *prog: (expr NEWLINE)* ; * > >> >> *expr: expr ('*'|'/') expr * > >> >> * | expr ('+'|'-') expr * > >> >> * | INT | '(' expr ')' ; * > >> >> *NEWLINE : [\r\n]+ ; INT : [0-9]+ ;* > >> >> > >> >> This will compile into a java program that parses expressions very > much > >> >> like what you want. > >> >> > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > >> For additional commands, e-mail: user-h...@commons.apache.org > >> > >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > >
