Matrix refers to a two-dimensional data table arranged vertically and horizontally. A square matrix consisting of coefficients and constants in an equation. These elements are arranged in a rectangular structure with straight lines and horizontal lines. For example, in mathematics, the coefficients of multiple equations are often arranged in a matrix, and the unknowns are solved through the operation of the matrix.

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.