What is matrix? Explain with an example.

Answer:a rectangular array of quantities or expressions in rows and columns that is treated as a single entity and manipulated according to particular rules.

Step-by-step explanation:For example, the matrix A above is a 3 * 2 matrix. Matrices with a single row are called row vectors, and those with a single column are called column vectors. A matrix with the same number of rows and columns is called a square matrix.