%
% Nyquist Plot
%
% SEM 5928 - Sistemas de Controle 
% Escola de Engenharia de São Carlos - USP
%
% Adriano Siqueira - 2016
%

w = .3;

re = 1/(1 + w^2);

re

im = - w/(1 + w^2);

im

Gw = re +j*im;

MGw = abs(Gw)

MGwdecibel = 20*log10(MGw);

FGw = angle(Gw);

FGwgraus = FGw*180/pi