Plot Impedance vs Frequency

omega=linspace(0,10,100);
for i=1:100
Y(i)=1/3 + j*omega(i)/8 + 1/(2 + j*omega(i));
Z(i)=1/Y(i);
end
plot(omega,abs(Y));
xlabel('frequency (rad/s)');
ylabel('impedance magnitude (ohms)');