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在matlab绘图中可设置函数曲线图视角的用户界面的m函数。(Drawing in matlab function to set the curve of the user interface perspective m function.)

用matlab实现计算影像NDVI值的实例，简单方便(NDVI images using matlab realize the value calculated instance, simple)

以齿轮系统动力学和非线性动力学理论为基础,针对齿轮系统时变啮合刚度和齿侧间隙耦合作用的具体特点,建立了齿轮系统非线性模型,并用数值积分和数值仿真方法对其在某些参数域中进行了非线性振动研究(Based on the dynamics of a gear system and the theory of nonlinear dynamics, co nsidering characteristics of coupling action of the time-varying mesh stiffness and the gear backlash, a model of the nonlinear gear system is developed. The nonlinear vibration is studied by using numerical integration method and numerical simulation in some parameter fields.)

make a transversal channel take a three tap chanel [1,1/4 1/2] and data generate by BPSK(1 or -1)(make a transversal channel take a three tap chanel [1,1/4 1/2] and data generate by BPSK(1 or-1))

说明：  IRIS数据 用于聚类方法 主要用于模式识别、图像分割等(IRIS data for clustering method used pattern recognition, image segmentation, etc.)

为孤立特征值的代数方程摄动法的编程例子，能用于一般的教学或科研使用(It can be used for the education of matrix-perturbation and research.)

通过使用填充和不填充观察其滤波效果！使用了低通滤波器生成一个高斯滤波器！(Fill and not fill through the use of filtering effect observed! Low-pass filter used to generate a Gaussian filter!)

数值积分各种经典算法的matlab程序实现(matlab codes for classical methods of numerical intergration)

天线分析仪器，测试天线，电阻，电感，电容(Antenna analytical instruments, test antennas, resistors, inductors, capacitors)

北大MBA会计学案例库(Beijing University MBA case study for accounting)