说明：  很多时候我们对于C#语言不能进行矩阵计算而头疼，这是一个关于矩阵计算的类，可以直接引用，省去编程时的不少麻烦
(Very often we have C# Language should not carry out the matrix calculation and a headache, this is a category on the matrix calculation can be directly invoked, save a lot of trouble when programming)