好用的自然梯度算法例程

说明：  很好OFDMA的matlab仿真程序，程序简明的对系统进行了仿真，OFDMA入门级资料(OFDMA of matlab simulation program well, the program simple system simulation, OFDMA entry-level data)

本程序基于Matlab，可以对特定波长光线在透镜系统中进行光线追迹。可以生成任意方向平行光，点光源任意角度光线，并对全反射，光线射出系统等特殊情况用红色标出。透镜数任意，透镜参数可设。(The program is based on Matlab, with a specific wavelength of light in the lens system for ray tracing. Parallel light can be generated in any direction, at any angle point source of light, and the reflection of light injection system and other special circumstances marked in red. Any number of lenses, lens parameters can be set.)

说明：  珍藏多年的matlab潮流计算程序源代码集合，包含多个潮流计算程序(A collection of matlab trend calculation program source code for many years, including multiple power flow calculation programs)

说明：  利用matlab实现流体力学中经典算例：二维粘性方腔不可压流动的计算。(Matlab is used to calculate the incompressible flow in a two-dimensional viscous square cavity.)

该文件中包含有常微分方程初值问题的四种数值解法，分别是：RK4法，AB4法，AB4_AM4预测矫正法和改进的AB4_AM4法(The document contains the initial value problem of ordinary differential equations of the four numerical method, namely: RK4 method, AB4 Act, AB4_AM4 forecast correction method and improved method AB4_AM4)

任务具体的技术描述，如： 学号指纹生成器的核心是根据组员学号的输入，生成对应的操作符，对组长学号进行迭代操作。 4个七段码作为组员学号的输入显示，和每次运算结果的输出显示； 2个开关状态 sw[3:0]作为组员数据输入 4个按键分配 btn[1]作为读按钮，用于读入组员学号数据，btn[0]为操作控制按钮，按一下对应一次学号操作； (Description of specific technical tasks, such as: student number generator is the core of the fingerprint according to members of input student ID to generate the corresponding operator, student number on the head of the iterative operation. 4 seven-segment code number as the members learn the input display, and the output shows the results of each operation two switching state sw [3:0] as a data input four key members assigned btn [1] as read button student number for members to read the data, btn [0] for the operation control button, click the corresponding operation of a student number )

说明：  在matlab中关于数值计算的matlab源程代码(In matlab matlab numerical computation on the source code process)

对加速度时间历程进行频谱分析得到功率谱密度，按下述程序计算加权加速度均方根值(Acceleration time history of spectral analysis to obtain the power spectral density, calculated according to the following procedure weighted acceleration RMS)

高斯拟合程序，采用高斯函数拟合数据，获得拟合高斯函数的平均值和方差。(Gaussian fitting procedure, using Gaussian function fitting the data, fitting Gaussian function to obtain the mean and variance.)

复杂网络的matlab程序，包括bnet，nn net和nw net共8个.m文件组成。(compclex network)