Lecture Notes 1: Matrix Algebra Part A: Vectors and Matrices

Using Matrix Notation, I Matrix notation allows the two equations 1x + 1y = b 1 1x 1y = b 2 to be expressed as 1 1 1 1 x y = b 1 b 2 or as Az = b, where A = 1 1 1 1 ; z = x y ; and b = b 1 b 2 : Here A;z;b are respectively: (i) thecoe cient matrix; (ii) thevector of unknowns; (iii) thevector of right-hand sides. ................
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