wth Anisotropic), that is,
      multidimensional Smolyak sparse grids
      based on a mixture of 1D rules, and with a choice of exponential and linear
      growth rates for the 1D rules and anisotropic weights for the dimensions.
    </p>

    <p>
      <a href = "../../c_src/smolpack/smolpack.html">
      SMOLPACK</a>,
      a C library which
      implements Novak and Ritter's method for estimating the integral
      of a function over a multidimensional hypercube using sparse grids,
      by Knut Petr