p w(zz)
        </li>
        <li>
          <b>ZSC</b> computes the inverse map Z(WW) by Newton iteration.
        </li>
        <li>
          <b>ZFODE</b> computes the function ZDZDT needed by ODE in ZSC.
        </li>
        <li>
          <b>CHECK</b> checks geometry of the problem.
        </li>
        <li>
          <b>YZTRAN</b> transforms y(k) to z(k).
        </li>
        <li>
          <b>SCFUN</b> is the function whose zero must be found in SCSOLV.
        </li>
        <li>
          <b>SCOU