Matrices

Matrix

A set of numbers arranged in rows and columns to form a rectangular or a square array

A rectangular matrix

Has different number of rows and columns

A row matrix

Has only one row

A column matrix

Has only one column

A square matrix

Has the same number of rows and columns

Identity matrices are square matrices

Identity matrix, I, when multiplied with a matrix A, will result in matrix A. AI = IA = A

Element of the matrix

Every number in the matrix

Letters to denote a matrix

Must be written in capital letters

Representation of elements on rows and columns in a matrix

Pronounce the representation of element

“a two one”