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matlab中编程实现的线性最小二乘拟合函数： lzxec:功能：离散试验数据点的线性最小二乘拟合(matlab programming in a linear least-squares fitting function: lzxec: Function: discrete experimental data points, the linear least-squares fitting)

对于线性系统，输入输出在某频率点为正弦，利用本程序可以得到改频率点的幅值比和相位差。data文件为两组数据，通过matlab读取xls文件，可以用来验证本程序。(For linear systems, input and output sine wave at a frequency point, the use of this program can change the frequency by the amplitude ratio and phase difference. data files for the two sets of data, read by matlab xls files, can be used to test the program.)

The MATLAB coding style, project options and synthesis directives can have a significant effect on the final results. Knowledge about how a particular algorithm should be implemented in hardware can be reflected in the MATLAB code to improve the results. In doing so, the MATLAB loses a bit of its abstraction but the lower-level MATLAB will infer the desired architecture into the device.(The MATLAB coding style, project options and synthesis directives can h ave a significant effect on the final results. K nowledge about how a particular algorithm shou ld be implemented in hardware can be reflected i n the MATLAB code to improve the results. In doin g so, the MATLAB loses a bit of its abstraction but the lower-level MATLAB will infer the desired arch itecture into the device.)

making 3 phase balance 380v 50hz voltage source with pwm

实现迭代学习控制的simulink数学模型，设置PID参数，可以跟踪期望轨迹(Iterative learning control to achieve the simulink model, set the PID parameters, you can track the desired trajectory)

对单级倒立摆实现间接模糊自适应控制，包括隶属函数设计程序，simulink主程序，控制器S函数，被控对象S函数，作图程序(Implementation of the single inverted pendulum fuzzy indirect adaptive control, including the membership function of the design process, simulink main program, the controller S function, the plant S function, mapping procedures)

该算法主要针对稀疏矩阵的表示，适合初学者进行学习应用(The algorithm for sparse matrix suitable for beginners to learn the application)

灰色系统知道系统的一些简单信息，但是并没有完全了解该系统，只能根据统计推断或某种逻辑思维来研究该系统。(The gray system know some simple information system, but did not fully understand the system, to study the system can only be based on statistical inference, or some kind of logical thinking.)

fft2 and dct algorithm in image compression JPEG

matlab 鼠标从一幅图像中截取一个区域，并生成一幅图片(get a picture form a picture)