傅里叶变换能将满足一定条件的某个函数表示成三角函数（正弦和/或余弦函数）或者它们的积分的线性组合。在不同的研究领域，傅里叶变换具有多种不同的变体形式，如连续傅里叶变换和离散傅里叶变换。最初傅里叶分析是作为热过程的解析分析的工具被提出的-Fourier transform to meet certain conditions can be expressed as a function of trigonometric functions (sine and/or cosine functions) or a linear combination of their points. In different fields of study, Fourier transform has many different variations, such as the continuous Fourier transform and discrete Fourier transform. Fourier analysis is the first analytic solution for thermal process as a tool to be made