This item examines the values of the poles and characteristic values as functions of R.
The poles of the transfer function and the characteristics values of the difference equation are given by the expression:
p_{1,2}=\frac{-\frac{R}{L}\pm \sqrt{\left ( \frac{R}{L} \right )^{2}-\frac{4}{L\cdot C}}}{2}
Suppose the values of the capacitor and of the inductor are:
C=0.1\cdot 10^{-6}\, F L=3.3\cdot 10^{-3}\, H
R is always real and positive.
Use resistors from 10 to 620 Ω
