What is a matrix?
Answer
A matrix is a rectangular arrangement of numbers, symbols, or expressions in rows and columns, enclosed in brackets.
The working
Definition
A matrix is an ordered rectangular array of elements arranged in horizontal rows and vertical columns.
Order
A matrix with m rows and n columns is said to be of order m × n, and the element in the i-th row and j-th column is written aᵢⱼ.
Types
Common types include row, column, square, diagonal, identity, and zero matrices, defined by their shape or elements.
Uses
Matrices are used to represent and solve systems of linear equations and to perform transformations in algebra, physics and computer science.
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