CHAPTER ONE: MATRIX ALGEBRA AND ITS APPLICATION

Size of matrix A is 2x2 and that of B is 2x3, so the number of columns of matrix A (2) is equal to the number of rows of matrix B (2). Thus we can find the product AB which is a 2x3 matrix. This example shows that if AB=C, entry c12 (6) is found by the dot product of 1st row of matrix A and 2nd column of matrix B. ................
................