 values, while <b>x</b>
      and <b>w</b> are presumably vectors for which call-by-reference
      is appropriate and typically used automatically by both C and FORTRAN.
    </p>

    <p>
      If your FORTRAN77 compiler does not provide some way to override
      the call-by-reference convention, then it can be almost impossible
      to properly communicate data directly between a FORTRAN calling program
      and a C function.
    </p>

    <h3 align = "center">
      Licensing:
    </h3>

    <p>
     