Origin of matrix
The study of matrices has a long history, and Latin squares and magic squares have been studied since prehistoric times. As a tool for solving linear equations, queues have no short history.
In Nine Chapters Arithmetic, which was founded in the early Han Dynasty, the linear equation was expressed by the method of separation coefficient, and the extended matrix was obtained. Computational techniques used in the process of elimination, such as multiplying a non-zero real number in a row and subtracting another row from one row, are equivalent to the elementary transformation of a matrix.