Frequency Response (Bode Plot)

I am attempting to plot the circuit below as a bode plot. Where R = 100 kohm, C = 1 microfarady. Za= 1/(jwC) and Zb = R

It can be seen that it is a high pass filter, however my graph does not represent that. I am confused as to what I am doing wrong.

[Margaret Dipronio]

[Renato SL]

First of all, you said C = 1 microFarad but you put C = 10^(-9). You might want to recheck that.

I tried to run your script, and I think it works. The plot of the magnitude (h) is what you see to determine if it is a highpass filter or not, and I found that you have a highpass filter there.