import matplotlib.pyplot as plt
from sk_dsp_comm import sigsys as ss
#
b_FIR, a_FIR = ss.fir_iir_notch(1000,8000,0)
ss.zplane(b_FIR, a_FIR)
plt.show()
#
b_IIR, a_IIR = ss.fir_iir_notch(1000,8000)
ss.zplane(b_IIR, a_IIR)