        --------------------------------------------
    THIS RUN TESTS ALL THE FEATURES OF THE PACKAGE FOURCO :
    .TOP-END FCOEFS WITH 3 NUM.DIFFERENTIATION ROUTINES,
     THE RESTART FEATURE AND PRECALCULATED DERIVATIVES
    .TOP-END FCOETD FOR SAMPLED FUNCTION VALUES
        --------------------------------------------

       TEST FUNCTION IS       EXP(3.D0*X)

