Author´s reply

The author thanks Dr. Jury for his comments. The auxiliary constraints, based on evaluation of F(1) and F(-1), can be used to shorten the necessary computation, particularly in the singular cases. (In the nonsingular case, evaluation of F(1) and F(-1) is comparable to the steps saved in the tabular form.) It is to be noted, however, that the simplicity of the proposed method and the directness with which results are presented lend themselves to the assimilation of the auxiliary constraints and any other information incidental to a specific problem into the analysis.