Matrices

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are defined by the number of rows and columns it contains, expressed as 'rows x columns'.

Front

What is a 3x1 matrix?

Back

A 3x1 matrix has 3 rows and 1 column.

Front

How do you multiply two matrices?

Back

To multiply two matrices, the number of columns in the first matrix must equal the number of rows in the second matrix. The resulting matrix will have dimensions equal to the number of rows of the first matrix and the number of columns of the second matrix.

Front

What is the result of multiplying a 2x3 matrix by a 3x2 matrix?

Back

The result is a 2x2 matrix.

Front

How many rows are in a 7x3 matrix?

Back

A 7x3 matrix has 7 rows.

Front

What must be true in order to ADD two matrices?

Back

The dimensions of both matrices must be equal.

Front

What are the dimensions of a 3x2 matrix?

Back

A 3x2 matrix has 3 rows and 2 columns.

Front

What is a square matrix?

Back

A square matrix is a matrix that has the same number of rows and columns.

Front

What is the determinant of a matrix?

Back

The determinant is a scalar value that is a function of the entries of a square matrix, providing important properties about the matrix.

Front

What is a zero matrix?

Back

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