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MATLAB编程语言环境分析教程MATLAB programming language environment analysis tutorial(Programming language environment of MATLAB Tutorial MATLAB programming language environment analysis tutorial)

matlab的bp神经网络源程序，和数据库相连接。(matlab source of bp neural network, and databases connected.)

说明：  一致性扩散原理求解偏微分方程，常用来进行超声图像的斑纹噪声消除算法(consistency proliferation principles of nonlinear partial differential equations, commonly used to stain the ultrasound image noise reduction algorithm)

该方法 基于快速傅里叶变换，求解方形区域的poission方程 比差分 有限元快。

说明：  用MATLAB编的 谱估计里的伯格算法 效果很好(Made use of MATLAB in the Burg spectral estimation algorithm works well)

矩形域上的二阶椭圆差分格式，适合偏微分方程的学习，是有限差分格式(this is the equetion about the partial differetial equotion)

bit error rate versus capacity

克里金近似模型是一种很好的近似模型，使用非常广泛。(Kriging approximation model is a good approximation model is widely used.)

说明：  图论算法用于求解数学中的最短路问题，特别适用于建模编程(Graph theory algorithm for solving the mathematical problem of the most short-circuit, especially suitable for modeling programming)

说明：  快速傅里叶变换 (FFT) 实现，给定信号x(t)=sin(2πf0t)，f0=50Hz，对x(t)以fs=200Hz进行抽样，抽样点数为N=16。编写程序实现对x(n)的快速傅里叶变换，求得相应的X(K)。(Fast Fourier Transform (FFT) to achieve a given signal x (t) = sin (2πf0t), f0 = 50Hz, for x (t) with fs = 200Hz sampling, the sampling points is N = 16. Procedures for the preparation of x (n) of the fast Fourier transform, obtained by the corresponding X (K).)