Matrix Basics!

Front

What is a matrix?

Back

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

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given in the form 'rows x columns', indicating how many rows and columns it contains.

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 zero matrix?

Back

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

Front

What is the identity matrix?

Back

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

Front

How do you find the element at a specific position in a matrix?

Back

To find the element at position D_i,j, locate the ith row and jth column of the matrix.

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 transpose of a matrix?

Back

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