Matrices

Front

What is a₂₃?

Back

4

Front

What is the result of the matrix multiplication BA?

Back

Undefined

Front

What would be the dimension of the matrix product AB if A_1X4 and B_4X7?

Back

1X7

Front

In matrix dimensions, what comes first?

Back

Row

Front

What is the dimension of a matrix with 3 rows and 2 columns?

Back

3 x 2

Front

What is a matrix?

Back

A rectangular array of numbers arranged in rows and columns.

Front

What is the order of a matrix?

Back

The number of rows and columns it has, expressed as 'rows x columns'.

Front

What is a square matrix?

Back

A matrix with the same number of rows and columns.

Front

What is a zero matrix?

Back

A matrix in which all the elements are zero.

Front

What is the identity matrix?

Back

A square matrix with ones on the diagonal and zeros elsewhere.