Hi Ondrej,
Thanks a lot for kind response. I am trying to use sympy via Jython from
java. I am facing a few challenges:
1. Although I can call python (*.py, not sympy yet) functions from Jython,
but I could not find any example or information how to load sympy lib into
my java project.
2. From Sympy documentation, there are many examples to use sympi in sympy
live, but I didn't find any information yet regarding sympy API, for
example, if I need
do calculation for symbolic expression: exp1=x**2+y**2, exp2=x**2,
the symbolic calculation: exp1-exp2 = y**2,
how can I know which modules/functions of sympy should be used to do
this? Obviously, going through codes is not best way to do this.
3. If we call sympy from java, we need a way to passed in / return values
between sympy and java, how to do that? In Jython, we can set values, but
how to set variables?
I mean for the symbolic expression, sympy need to define variable
first (please correct me if I am wrong), how to do this from java/Jython
and passed into sympy?
I started to evaluate sympy and started to touch it two days ago and I have
no experience to use python, maybe I need to spend more time on this. But
not sure if or not the solution is workable on high level.
Thanks again and looking forward to any further help.
Raymond
On Thursday, May 7, 2015 at 11:43:12 AM UTC-7, Ondřej Čertík wrote:
>
> Hi Raymond,
>
> On Thu, May 7, 2015 at 12:10 PM, Raymond Gong <[email protected]
> <javascript:>> wrote:
> > Hey, this is the first time for me to be here, tried to search any
> examples
> > or comments or whatever information on usage of sympy in java project.
> >
> > Wonderying, anybody ever worked on the similar project? Any example can
> > share? It seems all examples in the documentation is using sympy live,
> >
> > Any help would be appreciated.
>
> Is using the Java C interface an option for you? If so, you can then
> call Python from Java using it, and thus SymPy. Or one can wrap our
> C++ core SymEngine (https://github.com/sympy/symengine) directly in
> Java, but SymEngine has only the basic features, compared to SymPy. If
> you are interested in this, we can see how to get this working.
>
> Ondrej
>
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