By Euler formula,a trigonometric series can be transformed into a power series,and then using Taylor series to obtain the sum function.By using the periodicity of trigonometric function,we can also get some analytical results of the series.Through several examples,we can deepen the understanding of such problems.
关键词
定积分/三角函数/级数/特殊函数
Key words
definite integral/trigonometric function/series/special function
维普
万方数据