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This program evaluates the analytical first and second (if approx=2) derivatives of f numerically. The parameters and steady state values of the arguments of the function f are assumed to be in the workspace

FIR & IIR Digital Filters

多重信号处理算法的DOA测角，信噪比，快拍数，信号源数对功率谱的影响(matlab platform, multi-signal processing algorithms DOA angle, signal to noise ratio, the snapshot number, the source of the power spectrum of several)

Find unique value in matrix then number if ubique alsi find....in matlab

最佳非均匀量化器的实现：用Matlab编程实现最佳非均匀量化。(The optimal nonuniform quantizer realization)

基于matlab图像处理实现螺纹识别，滤波，边缘检测，拟合数据(Based on MATLAB image processing, thread recognition, filtering, edge detection and fitting data are realized.)

说明：  在各行各业的工程实践中，有大量的科学计算工作需要完成。传统的计算方式一般需要较长的周期，相比之下开发效率极高的MATLAB是一个更好的选择。在MATLAB中，编程细节被简化，繁琐的实现过程也被略去，用户可以将更多精力集中于所需要处理的核心问题上。 MATLAB科学计算涉及数学、机械、电子、控制和金融等多个领域。本书以MATLAB科学工程计算为立足点，介绍MATLAB在科学计算领域中如何运用庞大的科学函数库来解决一些实际问题。在函数的选择上兼顾各函数的使用频率和专业性，力求典型全面。本书可作为MATLAB课程的教学用书或者线性代数、概率统计等课程的教学辅助书。(In the engineering practice of all walks of life, there is a lot of scientific calculation work to be completed. The traditional calculation method generally needs a long period, in contrast, the development of highly efficient MATLAB is a better choice. In MATLAB, the programming details are simplified, and the tedious implementation process is also omitted. Users can focus more on the core issues they need to deal with.)

用matlab编的关于识别的例子，初学者可以(using Matlab series on the identification example, beginners can s)

说明：  利用MATLAB强大的图形处理功能，符号运算功能和数值计算功能，实现连续时间非周期信号频域分析的仿真波形； 1、用MATLAB实现典型非周期信号的频域分析； 2、用MATLAB实现信号的幅度调制； 3、用MATLAB实现信号傅立叶变换性质的仿真波形； (The use of MATLAB powerful graphics processing capabilities, symbolic computing and numerical computing capabilities to achieve continuous-time non-periodic signal frequency domain analysis of the simulation waveform 1, using MATLAB to achieve a typical non-periodic signal frequency domain analysis 2, using MATLAB to achieve signal amplitude modulation 3, using MATLAB for signal Fourier transform nature of the simulation waveform )

说明：  是Contemporary Communication Systems using MATLAB该书中的MATLAB代码(Contemporary Communication Systems using MATLAB is the MATLAB code in the book)