    value of LDWORK.

  LDWORK  INTEGER
          The length of the array DWORK.
          LDWORK &gt;= MAX(1,(N+1)*K,4*K),   if P = 0;
          LDWORK &gt;= MAX(1,(N-P+2)*K,4*K), if P &gt; 0.
          For optimum performance LDWORK should be larger.

</PRE>
<B>Error Indicator</B>
<PRE>
  INFO    INTEGER
          = 0:  successful exit;
          &lt; 0:  if INFO = -i, the i-th argument had an illegal
                value;
          = 1:  the reduction algorithm failed; the Toeplitz matrix
              