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FFT，快速傅立叶变换，求一个信号的幅值和相角，频谱特性(FFT, fast Fourier transform, seeking a signal amplitude and phase angle, spectral characteristics)

有限元n维实体材料单元，仅供科研用途，拒绝商业使用(N-dimensional finite element solid material element, for scientific purposes, refusing commercial use)

说明：  基于python的多项式曲线拟合，本程序以1 3 5 9次为例子。(Based on the polynomial curve fitting of python, this program takes 1 3 5 9 times as an example.)

基因的FFT变换，可以快速得出外显子的位置(Transform FFT of the gene can be quickly drawn to the location of exon)

自己在各个论坛上搜集的十大算法，Dijkstra算法，Floyd算法，动态规划，分治算法，概率算法，灰色预测，聚类算法，蒙特卡洛，模拟退火算法，神经网络等等，附有算法的原理，部分含有相关的程序源代码。(In various forums to collect the ten algorithms, Dijkstra algorithm, the Floyd algorithm, dynamic programming, divide and conquer algorithms, probabilistic algorithms, gray prediction, clustering algorithms, Monte Carlo, simulated annealing, neural networks, etc., accompanied by the algorithmthe principle, in part contain the source code.)

说明：  利用有限差分法求解雷诺方程，进而可以求解气体静压轴承的特性(The Reynolds equation is solved by the finite difference method, and the characteristics of aerostatic bearing can be solved.)

计算灰色关联度，包含灰色绝对关联度、相对关联度和归一关联度(Calculate the gray relational grade, contains gray absolute degree relative correlation degree and normalized correlation degree)

LMS算法对线性色散信道的自适应均衡，并且信道的加性噪声为未知(the use of the LMS algorithm for adaptive equalization of a linear dispersive channel that produces (unknown) distortion)

本程序是根据jacobi过关法求实对称矩阵的全部特征值和特征向量(This procedure is based on realistic method jacobi clearance of all symmetric matrix eigenvalue and eigenvectors)

高斯-塞德尔迭代、拉格朗日差值、牛顿法、四阶龙格库塔 与数值分析有关的公式(Gauss- Seidel iteration)