Introduction - If you have any usage issues, please Google them yourself
The input interface (graphical or text interface can be), to distinguish between addition, subtraction, multiplication, and transposition be able to handle any input data and typical data processing errors (such as multiplication, when the first number of columns of a matrix is not equal to the second When a matrix of rows) must be used as triple storage structure, can not use an array of other forms output requirements in the form of a matrix output (ie 136 in the form of problem sets), when the first rows of a matrix is not equal to the first the number of rows of two matrices, the attention as the third output in the form of multiplication