FFT

一个用FTT法实现相关函数的快速估计程序(A correlation function with the FTT method to achieve the rapid estimation procedures)

是CA算法的test程序，用于描述微观枝晶长大的代码！(CA algorithm is the test procedure, used to describe the micro-dendrites grew up in the code!)

和大家分享一个全相位FFT，matlab程序，程序中全相位fft实现方法有两种，注释掉的根据原理推到得来，自己看吧。(And share a full-phase FFT, matlab program, the program fft implementation in all phase two, comment out the basis of the principle pushed to come, see for yourself.)

计算流体力学中运用有限体积法求解二维无粘欧拉方程，非结构网格(CFD finite volume method for solving two-dimensional inviscid Euler equations, unstructured grids)

对离散点进行多项式拟合，不同于传统多项式拟合高次出现病态，此程序可以拟合高阶多项式( ORTHOFIT Fit polynomial to data. YS = ORTHOFIT(X,Y,N) smooths/fits data Y(X) in a least-squares sense using a polynomial of degree N and returns the smoothed data YS.)

说明：  基于模拟退火的粒子群算法，模拟退火算法在搜索过程中具有该概率突跳的能力，能够有效地避免搜索过程陷入局部极小解。(Based on simulated annealing particle swarm optimization, simulated annealing algorithm in the search process has a sudden jump in the probability of the capacity, which can effectively avoid the search process into a local minimum solution.)

基于matlab的人工免疫遗传算法的编程（附注释）希望可以帮到大家 (Based on artificial immune genetic algorithm matlab programming (with comments) the desire to help people)

蒙特卡罗方法用于随机过程的处理，其重要应用软件如geant4，本书详细介绍了蒙卡的理论和应用，有很好的参考价值(Monte Carlo method is used for treatment of stochastic processes, and its important applications such as geant4, the book details the theory and application of Monte Carlo, have a good reference value)

有限元编程做网格划分的，对于从事有限元分析的比较有用(Programming the finite element mesh to do the, for finite element analysis of the more useful)

若矩阵A中的某一元素A[i，j]是第i行中的最小值，而又是第j列中的最大值，则称A[i，j]为矩阵A中的一个鞍点。请写出一个可确定此鞍点位置的算法（如果这个鞍点存在）。(If the matrix A, an element A [i, j] is the minimum value in the i-th row, but is the maximum value of the j-th column, then A [i, j] for the matrix A is a saddle point. Please write a algorithm to determine the position of saddle point (saddle point exists).)