T_INTERP_1D</a>,
      a FORTRAN77 library which
      interpolates a set of data using a piecewise constant interpolant
      defined by the nearest neighbor criterion.
    </p>

    <p>
      <a href = "../../f77_src/pwl_interp_1d/pwl_interp_1d.html">
      PWL_INTERP_1D</a>,
      a FORTRAN77 library which
      interpolates a set of data using a piecewise linear interpolant.
    </p>

    <p>
      <a href = "../../f77_src/r8lib/r8lib.html">
      R8LIB</a>,
      a FORTRAN77 library which
      contain