Definition, adding & subtracting of matrices
Definition of Matrix
Numbers in a rectangular system are called a martrix.
Matrix is a rectangular array of numbers, arranged in rows and columns.
The dimension of the matrix is always determined first by the number of rows and then by the number of columns.
Adding & subtracting of matrices
The addition (subtraction) of matrices is an operation of adding (subtracting) corresponding elements of two or more matrices.
A matrix can only be added to (or subtracted from) another matrix if the two matrices have the same dimensions.