In mathematics, matrix basically means a kind of rectangular arrangement of different numbers bound by brackets on both sides. Which is governed by certain rules. The two most important of these rules are: Some homogeneous linear equations can be determined by the sum of the coefficients. Some heterogeneous linear equations can be determined by arguments. Forms. A matrix is expressed by its number of rows and columns. For example: \ \ displaystyle A = \ \ begin {bmatrix} a_ 1,1} & a_ {1,2} & \ cdots & a_ {1, n} \\ a_ {2,1} & a_ {2,2} & cdots & a_ 1, n} \\\ cdots & \ cdots & d cdots \\ a_ {m, 1} & a_ {m, 2} & \ cdots & a_ {m, n} \ end {bmatrix}} তার in the above matrix The elements ( a11, a12, etc.) are expressed by m number of rows and n number of columns. Hence it is called m × nMatrix . This type of matrix is usually expressed by A = [amn] .