R=100; C=10^(-6); L = 2*10^(-3); s=i*22400; Z = R + s*L + 1/(s*C) abs(Z),angle(Z),angle(Z)*180/pi s = -5000 + i*22400; Z = R + s*L + 1/(s*C) abs(Z),angle(Z),angle(Z)*180/pi