4-num-ordenados-(if-else)

用Blackman-Tukey方法（自相关法）实现对任意输入的实序列函数x(n)作功率谱估计。(Using Blackman-Tukey method (autocorrelation method) to achieve the actual sequence of arbitrary input function x (n) for power spectrum estimation.)

说明：  利用Pq分解法求电力系统潮流计算的源代码，提供学习者参考哈，不过还是要自己编才清楚些哈(Pq decomposition method using power flow calculation of the source code to provide learners Reference Kazakhstan, but still have to own it more clearly and Kazakhstan)

IIR Filter Implemented in Matlab

打靶法解薛定谔方程利用matlab软件，采用打靶法结合Numerov算法进行求解定态薛定谔方程的本征值和本征方程。在位势为不同的抛物势时，都能求解出符合精度要求的本征值和本征方程。(Shooting method to solve the Schrodinger equation using matlab software, using the shooting method combined Numerov algorithm to solve the steady-state Schrodinger equation eigenvalues ​ ​ and eigen equation. Reign potential for different parabolic potential, the solution can meet the accuracy requirements of the eigenvalues ​ ​ and eigen equation.)

MATLAB PROGRAM TO DETERMINE CAPACITANCE OF PARALLEL PLATE CAPACITOR

Several numeric methods in matlab

函数功能：本函数将完成对输入图像的峰值信噪比计算(Function: This function will be completed on the input image of the peak signal to noise ratio calculation)

用C/C++编程求解了一个有限元算例二维传热问题,可以作为有限元学习的编程实例，以更好地理解有限元理论，并为进一步使用大型有限元软件打下基础。(With C/C++ Programming to solve a finite element numerical example of two-dimensional heat transfer problems, finite element can be used as examples to learn programming in order to better understand the finite element theory, and for the further use of large-scale finite element software to lay basis.)

说明：  层叠滤波方法实现秩排序统计滤波器及其matlab实现(Cascade filter implementation matlab rank order statistic filter and its implementation)

在球面，曲面上计算任意一一点的曲率值，梯度值。(Calculate any point on the sphere, surface curvature values​ ​ , gradient values.​ ​ )