Pre-Engineering 220 Introduction to MatLab ® & Scientific Programming j kiefer

D. Applications

A couple of cases in engineering that give rise to simultaneous linear equations.

1. Electrical Circuit

-2x₁ + (2+5+4+1)x₂ – 4x₃ – x₄ = 0

-6x₁ – 4x₂ + (4+9+6)x₃ – 9x₄ = 0

-x₂ – 9x₃ + (9+1+11)x₄ = 0