**quadpack_test**,
a FORTRAN90 code which
calls quadpack() to
estimate integrals using numerical quadrature,
using double precision arithmetic.

quadpack_double, a FORTRAN90 code which estimates integrals using numerical quadrature, using double precision arithmetic, by Piessens, deDoncker-Kapenga, Ueberhuber, and Kahaner.

- quadpack_test.f90, a sample problem.
- quadpack_test.sh, runs all the tests.
- quadpack_test.txt, the output file.