tidimensional quadrature rule from three files, applies
      the rule to a number of test integrals, and prints the
      results.
    </p>

    <p>
      <a href = "../../m_src/sandia_sparse/sandia_sparse.html">
      SANDIA_SPARSE</a>, 
      a MATLAB library which
      can produce a multidimensional sparse grid, based on a variety of 1D
      quadrature rules; only isotropic grids are generated, that is, the same
      rule is used in each dimension, and the same maximum order is used in
      each dim