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基于svd-tls功率谱分析的方法 ，是现代谱估计的一种常用方法(svd-tls-based power spectral analysis method is a kind of modern spectral estimation methods commonly used)

模拟退火法求函数的最小值 结束条件为两次最优解之差小于某小量(End condition of the simulated annealing method and function of the minimum of twice the optimal solution of the difference is smaller than some small amount of)

in this program we show image segmentation using sobel filter

已知地图边界点通过插值求面积，matlab计算面积函数实现。(Known map boundary points by interpolation for the area, matlab calculate the area function implementation.)

1. 608组样本，第一列数字是标号，第二列数字是出现损坏的时间，第三列表示数据有效性，为0有效 2. 损坏时间是对数正态分布的，需要拟合 3. 求均值80%置信区间 4. 成本为m，价格为s，保证盈利20%，选取保修期 5. 比较保修期和拟合数据的均值 6. 若保修期就是拟合损坏时间的均值，求出利润率 loadd.m：加载样本数据，并选取有效数据 period.m：加载成本、价格数据，计算利润和保修期的关系(1.608 groups of samples, the first number is the label, the second column number is the time to appear damage, the third list shows the validity of the data, which is 0 effective. 2. damage times are logarithmic normal distribution and need to be fitted 3. mean in 80% confidence interval 4. the cost is m, the price is s, the profit is 20%, the warranty period is selected. 5. compare the mean value of the warranty period and the fitting data 6. if the warranty period is to fit the mean damage time, the profit rate is calculated. Loadd.m: load the sample data and select the valid data Period.m: loading cost, price data, and calculating the relationship between profit and warranty period)

用MATLAB的GUI设计的一个计算器程序，可在次基础上形成更复杂的算法，并学习GUI的设计技巧！(Using MATLAB)

求传递函数的一般格式，通过该程序，我们基本上能写出求任意的传递函数的式子(The general format of the transfer function of demand。Through this program, we can write the formula basically seeking arbitrary transfer function)

this is the program for Digital modulation

利用MATLAB软件编写的序列二次规划算法程序，包括二次规划子程序的编写，用于求解非线性函数的最小值问题。(Using MATLAB software written in sequential quadratic programming algorithm program, including the preparation of quadratic programming routines for solving nonlinear function of the minimum problem.)

根据自己的需求随意作出二维曲线图，只需要用鼠标在坐标系中点击即可。(Free to make a two-dimensional graph according to their own needs, just use the mouse to click in the coordinate system can be.)