f4.02

绘制庞加莱截面图 在相空间中适当（要有利于观察系统的运动特征和变化，如截面不能与轨线相切，更不能包含轨线）选取一截面，在此截面上某一对共轭变量如x1和x.1取固定值，称此截面为Poincare截面，相空间的连续轨迹与Poincare截面的交点成为截点。(Poincare mapping sections in the phase space properly (should be beneficial to observe the system and changes in movement characteristics, such as the cross-section can not be tangent trajectory, but also can not contain rail line) to select a cross-section, in this section for a total of conjugate variables, such as x1 and X.1 take a fixed value, call this cross-section for the Poincare section, the phase space of the continuous trajectory of the point of intersection with the Poincare cross-section to become cut-off point.)

此为中值滤波原程序,通过matlab调用可实现滤波(this filter for the original procedure for the adoption of Matlab can be called Filter)

说明：  pq分解法都潮流计算，适合电力系统都人员使用，作为参考(pq)

低通巴特沃斯滤波器设计求阶数，适合广大学生们参考，(Low-pass Butterworth filter design requirements order, for the majority of students reference)

一种实现matlab和c#结合的小例子，有待进一步改进(An implementation matlab and c# combination small example, be further improved)

一元线性回归分析，matlab源程序，不错的小程序~~~~(A linear regression analysis matlab source code, a nice little program ~ ~ ~ ~)

C++ Primer源代码C++ Primer源代码C++ Primer源代码(C++ Primer source)

Automatic voltage regulator uncompensated and compensated case matlab simulation with results

用有限元软件分析模型，用于超声弹性成像，有一定的参考价值(Software analysis using finite element model for ultrasonic elasticity imaging, there is some reference value)

将示波器CSV文件在MATLAB中画成图形,并进行FFT(input the .csv file of scope into matlab)