f the input vector of the
          system with the transfer-function matrix G and
          also the dimension of the output vector of the system
          with the transfer-function matrix W.

  P       (input) INTEGER
          The number of rows of the matrix C and the
          number of columns of the matrices BV and DV.  P &gt;= 0.
          P represents the dimension of the output vector of the
          system with the transfer-function matrix G and
          also the dimension of the input vector 