中文说明：计算两个矩阵之间的欧氏距离，对球谐函数图形进行仿真,包括四元数的各种计算,计算互信息非常有用的一组程序,是机器学习的例程，脉冲响应的相关分析算法并检验。
English Description：
The Euclidean distance between two matrices calculation, simulation of the spherical harmonic function graph, including the quaternion calculation, the calculation of mutual information is very useful for a set of programs, routines of machine learning, the impulse response of the correlation analysis algorithm and test.