摘要
通过可展成傅里叶级数的函数所构成的无穷维内积空间与三维直角正交基所构成的普通三维空间的对比,解释了傅里叶级数中的傅里叶系数的来由.
By comparing the standard three-dimensional space composed by orthogonal three-dimensional basis and the multi-dimensional inner product space consisted of Fourier series-expanded function,the origination of the Fourier coefficient in Fourier series was illustrated.
出处
《宜宾学院学报》
2010年第6期14-15,共2页
Journal of Yibin University
