includes
      a version of the <b>XERROR</b> library.
    </p>

    <p>
      <a href = "../../f77_src/quadpack/quadpack.html">
      QUADPACK</a>,
      a FORTRAN77 library which
      estimates integrals, and which calls the <b>XERROR</b> library.
    </p>

    <p>
      <a href = "../../f_src/slatec/slatec.html">
      SLATEC</a>,
      a FORTRAN90 library which
      includes a version of
      the <b>XERROR</b> library.
    </p>

    <p>
      <a href = "../../f77_src/starpac/starpac.html">
      STAR