# kirchhoff_exercise_01.m
# This script solves a simple LES resulting from Kirchhoff's laws.
# Example from NunezPhysics video tutorial: https://www.youtube.com/watch?v=zdE7xsbuNTg
# R. Becker, 2015-04-12 

# A*x = b <=> x = A^-1 * b (another notation x = A\b)

A = [-1 -1 1 ; -6 3 0 ; 0 -3 -6]

b = [0 -24 -12]' # ' means "transpose". Here result is column vector

x = A\b

# alternative: 
# x = A^-1 * b
# or 
# x = inv(A) * b