piotr_toolbox_V3.26

产生不同频率、不同幅度的两种正弦波信号 对两个信号进行叠加并做频谱分析 还原原来两个信号（LPF)(Produce different frequency, the two sine wave signals of different magnitudes of the two signals are superimposed and do spectral analysis to restore the original two signals (LPF))

介绍了简单的ldpc编码，对初学者很有用！(Introduced a simple ldpc code is useful for beginners!)

专业小程序 撒发生过萨嘎是 萨福哦办法搜ihfpangneo (Professional small programs scattered occurred saga is a way to search ihfpangneo Sappho oh)

总体X服从非中心卡方分布，求两个参数的极大似然估计 输入：样本数据 输出：参数估计值n，v 内有详细说明(Overall X obey non-central chi-square distribution, find the two parameters MLE)

模糊PID控制程序的源码，有讲解，自己做的 ，效果还行(fuzzy PID control program source code, the operation is a brief)

代码基于Matlab软件，讲述了大量数学方法的应用思路和过程。内容涉及回归分析、主成分分析、因子分析、聚类分析、判别分析、时（空）间序列分析、Markov链、R/S分析、线性规划、层次分析法以及人工神经网络建模等方法。通过模仿本书讲授的计算过程，读者可以加深对有关数学方法的认识和理解，并且掌握很多Matlab的应用技巧。代码规范，可研究价值高。 　(Code based on the Matlab software, tells the story of a large number of mathematics method of thinking and process applications.Content in regression analysis, principal component analysis, factor analysis, cluster analysis, discriminant analysis, the (empty) sequence analysis, Markov chains, R/S analysis, linear programming, analytic hierarchy process (ahp) method and artificial neural network modeling, etc.By imitating the calculation process of this book teaches, readers can deepen the understanding and the understanding to the related mathematical methods, and master a lot of Matlab application skills.Code standards, it is with high research value.)

用于码头装卸问题，数学建模；用于码头装卸问题，数学建模(For terminal handling problems, mathematical modeling for terminal handling problems, mathematical modeling)

MATLAB 实现回归分析及逐步回归及预测 可用于数学建模(MATLAB)

sin函数的简单一维小波变换与一维傅里叶变换的比较算法(sin function with a simple one-dimensional wavelet transform one-dimensional Fourier transform of the comparison algorithm)

matlab函数实现任意位置平行线圈的互感值计算(matlab function anywhere in parallel to achieve the mutual inductance value of the coil)