部分分式方法与有限三角和的计算

Partial Fraction Decompositions and to Trigonometric Sum Identities

摘要: 本文利用部分分式方法，证明了一类含有参变量的有限三角函数求和公式，从而推广了Chu和Marini(1999)的相关结论。

Abstract: By partial fraction decomposition method, we prove a general summation formula on trigonometric sum, which contains several interesting trigonometric identities as special cases.