Square Matrix, Row Matrix

Square Matrix

An n × n matrix is said to be a square matrix of order n. In other words when the number of rows and the number of columns in the matrix are equal then the matrix is called square matrix.

For example:

The number of rows of the above matrix = 3

The number of columns of the above matrix = 3

Since the number of rows and the number of columns are equal, the above matrix A is a square matrix.

Row Matrix

In an m × n matrix, if m = 1, the matrix is said to be a row matrix.

If a matrix have only one row then it is called row matrix.

Examples of row matrix:

1. [7 5] is a row matrix.

The order of the above matrix is 1 × 2

2. [1 4 7] is a row matrix.

The order of the above matrix is 1 × 3

3. [4 3 8 6] is a row matrix.

The order of the above matrix is 1 × 4

4. [1 3 0 2 5] is a row matrix.

The order of the above matrix is 1 × 5

5. [5] is a row matrix.

The order of the above matrix is 1 × 1.

6. [0] is a row matrix.

The order of the above matrix is 1 × 1.

7. [1 3 7 9 2 7] is a row matrix.

The order of the above matrix is 1 × 6.