**rkf45_test**,
a FORTRAN90 code which
calls rkf45(), which
implements the Watt and Shampine RKF45 solver for systems of
ordinary differential equations (ODEs).

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

rkf45, a FORTRAN90 code which implements the Runge-Kutta-Fehlberg (RKF) solver for the solution of a system of ordinary differential equations (ODE).

- rkf45_test.f90, a sample calling program;
- rkf45_test.sh, runs all the tests;
- rkf45_test.txt, the output file;