计算矩阵的khatri-rao积，计算混合纳什均衡，将matlab计算得的矩阵转化为latex格式，在布尔网络、博弈论中都需要用到(the code of khatri-rao product,Calculating Nash equilibrium point)

由于matlab中没有计算Khatri Rao product的函数,这里写一个子函数方便调用.并且提供了HOSVD的计算函数(Because there is no function to compute Khatri Rao product in MATLAB, here is a child function that is convenient to call.)