I have attached a file for this problem. Can someone please see what i am doing wrong here. I am trying to plot the bode of frequency response of a filter but nothing showing up. The examples i find dont make much sense. The graph output does not look like respose of a low pass filter. How can i get it to plot the respose and also search a db value corresponding to a certain frequecy i.e if i want to know the attenuation at 1500 hz.
Thanks
