Warm-Up 8 - Matrices

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given in the form of 'rows x columns'. For example, a 3x2 matrix has 3 rows and 2 columns.

Front

What comes first when stating the dimensions of a matrix?

Back

The number of rows comes first in the order.

Front

How do you identify the element at a specific position in a matrix, such as D_2,1?

Back

To identify the element at position D_2,1, locate the second row and the first column of the matrix.

Front

What is the value of r_2,3 in a matrix?

Back

The value of r_2,3 is the element located in the second row and third column of the matrix.

Front

How do you determine the total number of elements in a matrix?

Back

The total number of elements in a matrix is calculated by multiplying the number of rows by the number of columns.

Front

What is a row matrix?

Back

A row matrix is a matrix that has only one row and multiple columns.

Front

What is a column matrix?

Back

A column matrix is a matrix that has only one column and multiple rows.

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 identity matrix?

Back

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