Definition:Elementary Matrix/Also known as

Elementary Matrix: Also known as
In treatments of linear algebra and matrix theory, it is usual to focus attention on elementary row operations and their associated elementary matrices.

Hence it is usual to use the term elementary matrix to mean exclusively that associated with an elementary row operation.

When handling elementary column operations, the full term is then used: elementary matrix for column operation.

On, where both treatments are discussed, it will be usual to use the full description for both types of elementary matrix.