3.4.2.9. A_FMM.S_matrix.int_f_tot

S_matrix.int_f_tot(S2, u, d)

Retirn the modal coefficient between two scattering matrces (self and S2)

Parameters:

• S2 (S_matrix) – Scattering matrix to between self and the end of the structure

• u (1darray) – Array of modal coefficient of “left” inputs to self.

• d (1darray) – Array of modal coefficient of “right” inputs to S2

Returns:

tuple containing:

• uo (TYPE): Array of coefficients of left-propagating modes in the middle

• do (TYPE): Array of coefficients of right-propagating modes in the middle

Return type:

tuple