linking c++ and mathematica

[Hwee Kuan Lee]

I am trying to link c++ program with mathematica - both ways.

MORE IMPORTANTLY, I would like to use some mathematica routines like
"FindRoot", "NSolve" in my C++ program.

I had been reading the online help, but didn't manage to find any good
help. can anyone tell me where to get help on this topic, or how to do
it?

thanks.

p/s i had been trying to use mathlink - call c functions in mathematica,
but without success.

[Kevin Leuthold]

You should use MathLink to do this. Section 2.12 in the Mathematica
book gives an introduction to MathLink, and the MathLink Developer's
Guide (in
AddOns/MathLink/DevelopersKits/<System>/Documentation/English) discusses
how to build MathLink programs and issues you may encounter in the
process.

If you post some of the specific problems you are having with MathLink
on this newsgroup, someone here might be able to help you out.

Kevin Leuthold
MathLink Group
Wolfram Research

[P.J. Hinton]

On 11 Aug 1998, Hwee Kuan Lee wrote:

> I am trying to link c++ program with mathematica - both ways.
>
> MORE IMPORTANTLY, I would like to use some mathematica routines like
> "FindRoot", "NSolve" in my C++ program.
>
> I had been reading the online help, but didn't manage to find any good
> help. can anyone tell me where to get help on this topic, or how to do
> it?
>
> thanks.
>
> p/s i had been trying to use mathlink - call c functions in mathematica,
> but without success.

It is not clear from the description of your problem for me to discern
what may lie at the source of your problems. I can give you some
guidelines that may get you on the right course.

1) Before starting out on a new project, it is often helpful to try
building a MathLink executable from sources that have been coded
properly.

The MathLink Developer Kit comes with a number of examples that should
be fairly easy to build. If you run into troubles building these
examples, then you will probably need to learn more about you compiler
so that you can get them to build successfully.

2) Once you can get the examples to build and run successfully, take a
look at the source code for examples that are relevant for your work.

MathLink can be used to create executables that act either call the
kernel or install into the kernel. It sounds as if you are wanting to
do the former. This is usually considered the more difficult task. A
very simple example of calling the kernel from a program is given in
the factor*.c source files.

These steps should prove useful to in getting comfortable with the
MathLink API and help you to write better original code from the
outset.

--
P.J. Hinton
Mathematica Programming Group pa...@wolfram.com Wolfram
Research, Inc. http://www.wolfram.com/~paulh/
Disclaimer: Opinions expressed herein are those of the author alone.