**ccn_rule_test**,
a C++ program which
calls ccn_rule() to
generate a quadrature rule based on a nested set of points
inspired by the Clenshaw Curtis quadrature rule.

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

ccn_rule, a C++ program which defines one of a set of Clenshaw Curtis Nested (CCN) quadrature rules of any order.

- ccn_rule_test.sh, runs all the tests.
- ccn_rule_test.txt, the output file.

**CCN_09** is a nested Clenshaw Curtis rule of order 9,
which will exactly match the standard Clenshaw Curtis rule.

- ccn_o9_r.txt, the region file;
- ccn_o9_w.txt, the weight file;
- ccn_o9_x.txt, the abscissa file;