非齐次项为cosωnP_l(n)的实系数线性递推关系求特解方法

A Solution to a Real Number coefficient Linear Nonhomogeneous Recursive Relation with cosω n P l ( n )

就非齐次项为ｃｏｓωｎ 或 ｓｉｎωｎ 与 ｎ 的实多项式 Ｐｌ（ｎ）乘积的实系数线性递推关系给出了求特解的一般方法。

This paper presents a general method which may be used to work out a special solution of the real number coefficient linear nonhomogeneous recursive relation, where the nonhomogeneous term is cosω n or sinω n multiplying a real polynomial in n .