NKmod_disc

用matlab实现三维情况下波的传播仿真，带有PEC边界.！(realize the propogation of electromagnetic under 3-D situation，with respect to the perfect electronic condutor.)

ABC算法，有效的ABC使你很容易理解掌握算法基本原理(ABC algorithm, valid ABC makes you easy to understand the basic principles to master algorithm)

beam bending deformation

说明：  用来提取特定的SSVEP脑电信号，用于分析各电极的分类准确率(Used to extract specific SSVEP EEG signals for analyzing the classification accuracy of each electrode)

经济和金融问题的求解 ； 时间序列预测模型 ，经济学模型 ，规划问题求解 (The solution of economic and financial issues time series forecasting models, economic models, planning and problem solving)

该程序演示了三角函数和双曲函数以及对数函数之间的关系，可供数学学习研究之用。 (The program demonstrates the trigonometric and hyperbolic functions and the relationship between the logarithmic functions are available for mathematics learning research.)

对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spectrum characteristics and frequency characteristics and find the different time node, in order to analyze the acoustic characteristics of different event period.)

说明：  为考查各种不确定性因素对系统运行的影响，需要大量地重复性潮流计算。结合概率理论形成的概率潮流计算能够充分考虑这些不确定性因素。由概率潮流计算可以得到节点电压、电流、支路潮流的均值、方差、概率密度函数等统计特性，从而更全面地反映系统运行状况。(In order to examine the impact of various uncertainties on system operation, a large number of repetitive power flow calculations are needed. The probabilistic power flow calculation based on probability theory can fully consider these uncertainties. Statistical characteristics of node voltage, current and branch power flow, such as mean, variance and probability density function, can be obtained from the calculation of probabilistic power flow, thus reflecting the operation status of the system more comprehensively.)

使用matlab的m语言编写的自控原理中的劳斯判据。写成函数形势，课以直接调用(routh)

说明：  关于码matlab的介绍，对于初学者来说能够很快了解matlab。(On the introduction of matlab code, for beginners to quickly understand the matlab.)