square matrix

noun

, Mathematics.

1. a matrix in which the number of rows is equal to the number of columns.

square matrix

noun

1. maths a matrix in which the number of rows is equal to the number of columns

Word History and Origins

Origin of square matrix¹

First recorded in 1930–35

Example Sentences

The Perron-Frobenius theorem states that for a square matrix with all positive entries, there is a unique largest real eigenvalue and that its corresponding eigenvector has positive x and y coordinates.

From Scientific American

It is a square matrix, where cells on the upper-left to lower-right diagonal represent the elements of a system and off-diagonal cells represent the relationships among these elements. 

From Scientific American