id3

This function is used to evaluate the max height and the max distance of a projectile and plot the trajectory. Inputs v0 : The initial velocity in m/s theta: The angle at which the projectile is fired in degrees Outputs hmax : The maximum hieght in m dmax : The maximum distance in m

说明：  code for image subtraction

说明：  动态烟花代码，适合小白学习。。。。。。。。。。。(Little white dynamic fireworks code, suitable for learning)

运用hurst指数检验水文时间序列是否具有趋势性（单组数列&多组数列矩阵形式）(Use hurst index test whether hydrological time series trend (single-set number of columns & multiple columns in matrix form))

电机的各种启动方式，包括直接启动，串电阻启动，降压启动，还包括电机的制动方式(A variety of ways to start the motor, including direct start, series resistance started, the buck starts, including braking motor)

矩量法求八木天线的辐射问题，很有用处，欢迎学习指导(Method of Moments Yagi antenna radiation, useful, Welcome to the guide)

多样化的特点，直观和清晰的启动电压和电流的特性的过程中一个电机仿真过程的详细描述(A detailed description of the process of motor simulation in a variety of features, intuitive and clear to start the process of voltage and current characteristics shown)

小波包分析提取振动信号中的特征频率，是路径规划的实用方法，计算多重分形非趋势波动分析。( Wavelet packet analysis to extract vibration signal characteristic frequency, Is a practical method of path planning, Calculate the multifractal trend fluctuation analysis.)

This Simulink model simulate GMSK modulatino in Rayleigh channel.

说明：  用MATLAB实现的压缩传感，外文资料，里面含有部分源代码，用MATLAB可以仿真(Compressed sensing using MATLAB implementation, foreign language data, which contains part of the source code can be simulated using MATLAB)