This assignment introduces the concept of operatoroverloading and the use of the friend keyword.
Assignment
In mathematics, a matrix (plural matrices) is arectangular array of numbers, symbols, or expressions, arranged inrows and columns. The dimensions of the matrix below are 2 x 2(read “two by two”), because there are two rows and twocolumns.

The individual items in a matrix are called itselements or entries. Provided that they are thesame size (have the same number of rows and columns), two matricescan be added or subtracted element by element. The rule for matrixmultiplication, however, is that two matrices
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