he remaining part, the negative generator of the
          Schur complement of the leading (P+S)*K-by(P+S)*K part
          in T.

  LDT     INTEGER
          The leading dimension of the array T.
          LDT &gt;= MAX(1,K),        if TYPET = 'R';
          LDT &gt;= MAX(1,(N-P)*K),  if TYPET = 'C'.

  R       (input/output)  DOUBLE PRECISION array, dimension
          (LDR, N*K)       / (LDR, S*K )     if P = 0;
          (LDR, (N-P+1)*K) / (LDR, (S+1)*K ) if P &gt; 0.
          On entry, if P &gt; 0, th