Matrices

Front

What must be true in order to ADD two matrices?

Back

The dimensions must be equal.

Front

You can ADD a 2X3 matrix by which matrix?

Back

2X3

Front

What are the dimensions of a matrix with 3 rows and 1 column?

Back

3x1

Front

What are the dimensions of a matrix with 1 row and 3 columns?

Back

1x3

Front

What is the result of subtracting the following matrices: 3 - 4 and 8 - 13?

Back

3 - 4
8 - 13

Front

What must be true in order to MULTIPLY two matrices?

Back

The number of columns in the first matrix must equal the number of rows in the second matrix.

Front

What is the result of multiplying the following matrices: 20, 15, -10 and 30, -5, 0?

Back

-20, 15, -10
30, -5, 0

Front

What is a matrix?

Back

A rectangular array of numbers arranged in rows and columns.

Front

What is the identity matrix?

Back

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

Front

What is a zero matrix?

Back

A matrix in which all the elements are zero.