same letter as CB regardless of case.
        </li>
        <li>
          <b>XERBLA</b> is an error handler.
        </li>
      </ul>
    </p>

    <p>
      You can go up one level to <a href = "../f77_src.html">
      the FORTRAN77 source codes</a>.
    </p>

    <hr>

    <i>
      Last revised on 28 March 2007.
    </i>

    <!-- John Burkardt -->

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