包含了当代科学计算过程中涉及的大量内容：求特殊函数值、随机数、排序、最优化、快速傅里叶变换、谱分析、小波变换、统计描述和数据建模、偏微分方程数值解、若干编码算法和任意精度计算等-Includes calculation of contemporary science involved substantial elements: seeking a special function values, random numbers, sorting, optimization, fast Fourie

　快速傅氏变换（FFT）是离散傅氏变换(DFT)的快速算法，它是根据离散傅氏变换的奇、偶、虚、实等特性，对离散傅立叶变换的算法进行改进获得的。快速傅里叶变换有广泛的应用，如数字信号处理、计算大整数乘法、求解偏微分方程-Fast Fourier Transform (FFT) is the discrete Fourier transform (DFT) in the fast algorithm, which is based on discrete Fourier transform of t

阿尔珀特变换是一个多小波变换基于正交多项式。它最初被设计为偏微分方程和积分方程的决议，因为它避免了边界神器，并且可以使用任意采样。-The Alpert transform is a multiwavelets transform based on orthogonal polynomials. It was originally designed for the resolution of partial differential and integral equations, since i

将小波变成与偏微分方程结合实现图像去噪。-Wavelet into partial differential equations for Image Restoration.