CBSE Class 12 Maths Notes Chapter 3 Matrices Matrix: A matrix is an ordered rectangular array of numbers or functions. The numbers or functions are called the elements or the entries of the matrix. Order of a Matrix: If a matrix has m rows and n columns, then its order is written as m × n. If a matrix has order m × n, then it has mn elements. In general, am×n matrix has … [Read more...]