# What is matrix

The theory of matrix is a powerful tool in modern mathematics. It is especially useful in the system of linear equations, linear transformation and many other filed of

physics, chemistry, engineering and social science.

**What is matrix?**:

Matrix is a rectangular array of numbers arranged in row (horizontal lines) and columns (vertical lines) usually a matrix is enclosed between round or square

brackets.

Example:

1>

2>

Usually matrix are denoted by a capital letter and two subscription.

Example:

Where “i” denotes the number of rows the matrix have and “j” denotes the number of columns the matrix have.

Elements of a matrix:

Each entry in a array(Matrix) is known as element of the matrix.

For example in

1 , 2 , 5 , 4, 8, 9 , 2 , 7 , 3 are the elements of matrix.

Elements of a matrix are denoted by small letter followed by two sub scripts.

For example:

Where “i” denotes the row position of “a”(element of matrix) in matrix and “j” denotes the column position of “a”(element of matrix) in matrix.

For example:

In matrix

=7

The world of matrix is very interesting we can do a lot of things with matrix. For more advanced articles about matrix please search in the search box at top of the page.

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