1 ECE 1304 Introduction to Electrical and Computer Engineering Section 1.7 Linear Algebra with MATLAB

2 Simultaneous Equations a 11 x 1 + a 12 x 2 + a 13 x 3 = b 1 a 21 x 1 + a 22 x 2 + a 23 x 3 = b 2 a 31 x 1 + a 32 x 2 + a 33 x 3 = b 3 This set of equations may be written in Matrix Form Ax = b

3 Simultaneous Equations 6 x x x 3 = 70 7 x 1 – 2 x x 3 = 5 2 x x 2 – 9 x 3 = 64 This set of equations may be written in Matrix Form Ax = b

4 Simultaneous Equations

5 Note the use of the “Left Division” operator: \

6 Simultaneous Equations