Someone else who is more experienced please jump-in here. My $0.02... 1. Would this be significantly different from SymJa? > https://bitbucket.org/axelclk/symja_android_library/wiki/Home
I think we're talking about two different thing: 1) Mansour was asking for a library that can take a string and returned some sort of AST for mathematical equations. Maybe it would also produce a tree of components that are found in commons-math. 2) I'm looking at/working on a GUI that can take a string, display it in LaTex output, and also produce a tree structure of components found in commons-math. Then this tree would be evaluated/interpreted to produce an output for the user. My project is akin to commons-math + parser + evaluator/interpreter. I don't know enough about SymJa, but it looks to be much closer to #2 than #1 -- which isn't to say that it doesn't already contain #1 in it. It looks like JAS (which SymJa uses) does a lot of this: http://krum.rz.uni-mannheim.de/jas/ > 2. Should this be an implementation of an existing spec, like RPN or > MathML, or do we need a new one? > My goal was to match the Maple "spec" as closely as possible. It's fairly close to LaTex (again, LaTex has more syntax for formatting than needed here). I went with that primarily because I know Maple and didn't know about RPN or MathML :-) Also, I'm looking for things like A := 2*x + 3 where you're assigning an equation to the "variable" A. > 3. Will the language be interpreted, or will Java code be generated, or > will JSR 199 be used to invoke the Java compiler? > My thought would be the resulting tree structure from after parsing would be evaluated/interpreted and the result presented to the user. The site seems to be down, but I think you can play around with a demo version of Maple here: http://www.maplesoft.com/products/maple/demo/ That is what I'm going for... thoughts? Bill-
