Question

What is a matrix in math?

Answer 1

Matrix:

• A matrix is the arrangement of numbers in rows and columns in order to form an array.
• The horizontal arrangement is called a row and the vertical arrangement is called a column.
• If the matrix is denoted as ${\left[A\right]}_{m\times n}$, it means that the matrix $A$has $m$rows and $n$columns and the order of the matrix is $m\times n.$

• Each number in the matrix is called an element and the position of the element is represented as $a_{mn}$.