Code is a mixture of C/C++/Fortran.
Includes C++ classes for matrix manipulation, numerical
integration, and the solution of systems of non-linear ODE's and
DAE's. 2D and 3D plotting using
(This info comes from
``Free C,C++ for numerical computation'', Ajay Shah (qv)).
The Octave website
can provide further information.
See also octave-forge
for associated programs and links.