An infinite series whose terms are constants multiplied by sine and cosine functions and that can, if uniformly convergent, approximate a wide variety of functions.傅立叶级数:一列连续与正弦、余弦函数相乘的无穷级数,若是趋向同一点时,可模拟一系列多种函数
Etymology语源
After Baron Jean Baptiste JosephFourier源自 男爵 简·巴蒂斯特·约瑟夫 Fourier