Flashcard Matrix

Front

What are the dimensions of the matrix: [2, 7, 0, 1], [-4, 10, 4, 6], [5, -2, -9, -5]?

Back

3 x 4

Front

What is the result of adding the matrices: [11, 8], [-4, 2], [3, 2], [-6, -6]?

Back

[11, 8], [-4, 2]

Front

What must be true in order to ADD/Subtract two matrices?

Back

The dimensions must be the same.

Front

What is the result of subtracting the matrices: [3, -8], [0, -1], [3, -4], [8, -13]?

Back

[3, -4], [8, -13]

Front

Multiply the scalar matrix -3 with [2, 5, 12, -6]. What is the result?

Back

[-6, -15, -36, 18]

Front

Define a matrix.

Back

A matrix is a rectangular array of numbers arranged in rows and columns.

Front

What is a scalar in matrix operations?

Back

A scalar is a single number that can multiply a matrix.

Front

What is the difference between a row matrix and a column matrix?

Back

A row matrix has only one row, while a column matrix has only one column.

Front

What is the identity matrix?

Back

An identity matrix is a square matrix with ones on the diagonal and zeros elsewhere.

Front

What is the zero matrix?

Back

A zero matrix is a matrix in which all elements are zero.