**differ_test**,
a FORTRAN90 code which
calls differ(), which
determines the finite difference coefficients necessary in order to
combine function values at known locations to compute an approximation
of given accuracy to a derivative of a given order.

The computer code and data files made available on this web page are distributed under the MIT license

differ, a FORTRAN90 code which determines the finite difference method (FDM) coefficients necessary to compute an approximation of given accuracy to a derivative of a given order.

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