lysTPVn

这是一个三维超混沌离散系统Folded towel函数(Three dimensional hyperchaotic discrete system function)

根据高斯光束的特性，在matlab中作出束腰半径为0.5mm的高斯光束在束腰处的三维光强分布图。(According to the characteristics of the Gauss beam, the three-dimensional intensity distribution of the Gauss beam with the waist radius of 0.5mm at the waist is made in MATLAB.)

说明：  实现快速分数阶傅里叶变换功能。分数阶傅里叶变换是整数傅里叶变换的普遍形式，可用于光的菲涅尔衍射模拟。(The function of fast fractional Fourier transform is realized. Fractional Fourier transform is a general form of integer Fourier transform, which can be used to simulate Fresnel diffraction of light.)

利用matlab对轴系当量模型扭转振动的振型和频率进行计算(Calculation of torsional vibration modes and frequencies of shafting equivalent model by MATLAB)

可以读取gmesh软件产生的网格数据，读取.msh(Can read grid data generated by gmesh software, read .msh)

说明：  超短脉冲在光纤中传输产生各种非线性效应，影响因素包括激光器的高斯脉冲，本模拟是初始啁啾脉冲的脉冲形状。(The transmission of ultrashort pulses in optical fibers produces various non-linear effects. The influencing factors include the Gaussian pulse of the laser. This simulation is the pulse shape of the initial chirped pulse.)

用数值求解一阶贝塞尔函数的前10个零点并作出曲线(Numerical solution of the first-order Bessel function of the top 10 zero point and make a curve)

说明：  导入matlab后添加另一个gearsolve函数，使用ode45进行t为0.001：0.001：1000和刚度ky数组，即可获得齿轮组的全自由度运动图像(After importing MATLAB, add another gearsolve function, use ode45 to do t = 0.001:0.001:1000 and stiffness KY array, then the full degree of freedom motion image of gear set can be obtained)

平面波或锥形波照射任意粗糙面，用基尔霍夫近似方法的散射计算(Kirchhoff scattering rough surface)

用于计算传热学五种常见对流扩散数值计算对比(Numerical comparison of five kinds of convection diffusion)