Matrix is a set of elements laid out in tabular form (in rows and columns). A matrix is a grid used to store or display data in a structured format. It is often used synonymously with a table, which contains horizontal rows and vertical columns. While the terms "matrix" and "table" can be used interchangeably, matrixes (or matrices) are considered more flexible than tables. For example, tables generally have a fixed number of rows and columns, while the size of a matrix may change dynamically. The term "matrix" may also be used to refer to a table that has groups of columns within a single row.