الأمثلة

$[\begin{array}{c} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{array}]$

خطوة 1

A matrix is a rectangular arrangement or array of elements. The dimensions of a matrix,

$m \times n$ , identify how many rows and columns a matrix has.

$m$ represents the number of rows and

$n$ represents the number of columns. Assuming that the matrix name is

$A$ , the matrix dimensions are written as

$A_{m \times n}$ .

خطوة 2

The number of rows is

$3$ .

$m = 3$

خطوة 3

The number of columns is

$3$ .

$n = 3$

خطوة 4

The given matrix has dimensions

$m \times n = 3 \times 3$ .

$A_{m \times n} = A_{3 \times 3}$

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