Matrix Basics

Front

What is a matrix?

Back

A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given in the form 'm x n', where 'm' is the number of rows and 'n' is the number of columns.

Front

How do you denote the element in the second row and second column of a matrix A?

Back

The element is denoted as a_2,2.

Front

What is a row matrix?

Back

A row matrix is a matrix that has only one row.

Front

What is a column matrix?

Back

A column matrix is a matrix that has only one column.

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 a zero matrix?

Back

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

Front

What is the transpose of a matrix?

Back

The transpose of a matrix is obtained by swapping its rows and columns.

Front

How do you add two matrices?

Back

Two matrices can be added if they have the same dimensions; add corresponding elements.

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.