Amplitude and phase of transfer function

How do I plot of the amplitude and phase of a transfer function (complex modulus) as a function of frequency (ω) up to 100,000 radians/s. Please use a logarithmic axis for ω when presenting your plot. Given the following equations for amplitude and phase: μ= 5 Pa•s, E= 1 kPa

Answer 1

[D S Acharya]

%for magnitude

omega=0:100000; mu=5; E=1000;

numerator=omega*mu;

denominator=sqrt(1+((numerator/E).^2));

tf=numerator/denominator;

%for phase

phase=(pi/2)-atan(numerator/E);

semilogx(omega,tf);

figure;

semilogx(omega,phase);

Answer 2

[Zhuxuan]

I didn't look at the specific function you need to plot.

But for the bode plot of a transfer function, in general, you can use the function tr (transfer function) and bode (bode plot). The function bode can even generate the plot automatically:

sys = tf(numerator,denominator)

[mag,phase,wout] = bode(sys)

Hope it can help!