fem.2.1

初学matlab的教程，比较全面，比较实用，此部分为第三部分。(Matlab beginner tutorial, more comprehensive, more practical, this part of the third section.)

各种可直接运行的matlab simulink的电机模型(Variety can be directly run matlab simulink motor model)

matlab程序基于fdtd方法计算物质组成及结构的程序，程序语言简单易懂，适合初学者(Matlab based on FDTD method to calculate the material composition and the structure of the program, the program language easy to understand, suitable for beginners)

线性调频脉冲压缩的Matlab程序,音频信号通过LM386放大，关于神经网络控制。( LFM pulse compression of the Matlab program, LM386 audio signal amplification, On neural network control.)

带交叉因子的改进PSO算法，功能：求解多维无约束优化问题，特点：收敛性强，还可以加入变异算子(With cross-factor improved PSO algorithm, function: solving multi-dimensional unconstrained optimization problems, characterized by: strong convergence, mutation operator can also add)

改进粒子群算法以及例子,可单步运行，算法参数可调(improve PSO and example)

Low pass filter for frequency domain

Antoine equation from thermodynamic applications in chemicl engineering

很好的学习FFT的程序，易于理解，便于学习，具有很好的参考价值(Learning the FFT program, easy to understand, easy to learn, have a good reference value)

It checks weather the code is instantaneous or not