[en] The practical procedures for the solutions of the elements of any eclipsing system in the frequency-domain have been described in a previous paper (Kopal and Demircan, 1978). The fundamental quantities from which the author starts are two g-functions defined by the moments Asub(2m). If the observational values for these functions are established, they constitute two independent relations between the unknown parameters a and c₀, and can be numerically solved for them with the aid of the general expressions for the respective moments. However, the determinacy of these parameters depends on not only the accuracy of observations but also the employed g-functions. For better understanding of the geometrical determinacy of the eclipse parameters a and c₀, different combinations of the moments Asub(2m) have been worked out as g-functions. For the index 2m, the values between 0 and 6 were applied. It has been noted that the behaviour of these functions vary but very little with applied different combinations of the moments. A choice of the most convenient moments to obtain a good determinacy for the eclipse elements were discussed. In this connection, (i) the m-dependence of the moments, and the errors in their observational values have been considered, (ii) different practical procedures for the solution of eclipse elements were introduced, and (iii) different type of moments were tested. (Auth.)