Polynomials               package:dse1               R Documentation

_P_o_l_y_n_o_m_i_a_l _U_t_i_l_i_t_i_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     Polynomial utility functions used by DSE.

_U_s_a_g_e:

         characteristicPoly(a)
         companionMatrix(a)
         polyvalue(coef, z)
         polydet(a)
         polyprod(a, b)
         polysum(a, b)
         polyrootDet(a)

_A_r_g_u_m_e_n_t_s:

       a: An array representing a matrix polynomial.

       b: An array representing a matrix polynomial.

    coef: Coefficients of a polynomial.

       z: Value at which the polynomial is to be evaluated.

_D_e_t_a_i_l_s:

     These are utility functions used in some ARMA model calculations
     such as root and stability calculations.

_V_a_l_u_e:

     depends

_S_e_e _A_l_s_o:

     'polyroot' 'roots' 'stability'

