Do you want to ask, "What does a square mean in mathematics?" ? This refers to a group of complex or real numbers arranged in a rectangular array.

The square matrix originated from the square matrix composed of coefficients and constants of equations. A square matrix is a matrix with n rows and n columns, where n is a positive integer. This matrix can be used to represent some important information, such as matrix transformation, linear equations, vector space and so on. Square matrix has many applications in mathematics, for example, when solving linear equations, we can solve unknown quantities by transforming square matrix.