A Semi-Numerical Expansion of Mutivariate Periodic Function

This paper reports on the mathematical basis for the seminumerical development of the multivariate periodic function.How this semi-numerical development is realized with the aid of a computer is studied.This development is examined and tested by means of the disturbing function of the luner main problem.The results show that the development is in accordance with the literal expansion very well.The advantage of this method in solving the perturbation equation is also discussed.