row matrix of order [math]1\times4[/math].
Row, Column, Zero Matrices
Row matrix
A matrix having only one row is called a[b] row matrix[/b]
Column matrix
A matrix having only one column is called a [b]column matrix.[/b]
column matrix of order [math]4\times1[/math].
Zero matrix or Null matrix or Void matrix
A matrix [math]A=\left[a_{ij}\right]_{m\times n}[/math] is said to be a[b] zero matrix or null matrix or void matrix[/b] denoted by [math]O[/math] if [math]a_{ij}[/math] for all values of [math]1\le i\le m[/math] and [math]1\le j\le n.[/math]
zero matrices of order [math]2\times4[/math]