>means that you get the same output from a circuit Not sure where you were taught that, but it does not strike me as the generally accepted meaning of the term

>means that you get the same output from a circuit Not sure where you were taught that, but it does not strike me as the generally accepted meaning of the term "linear". Where I hail from, linear means: f(a*x + b*y) = a*f(x) + b*f(y) aka the superposition principle.