 "../../m_src/lagrange_interp_nd/lagrange_interp_nd.html">
      LAGRANGE_INTERP_ND</a>,
      a MATLAB library which
      defines and evaluates the Lagrange polynomial p(x) 
      which interpolates a set of data depending on a multidimensional argument x
      that was evaluated on a product grid, so that p(x(i)) = z(i).
    </p>

    <p>
      <a href = "../../m_src/r8lib/r8lib.html">
      R8LIB</a>,
      a MATLAB library which
      contains many utility routines using double precision real (R8) arit