matplotlib example ex (snippet)

Python matplotlib example 'ex'

Modules used in program:

• import scipy.signal
• import scipy
• import matplotlib.pyplot
• import matplotlib

python ex

Python matplotlib example: ex

import matplotlib
import matplotlib.pyplot

import scipy
import scipy.signal

from numpy import pi

[b,a] = scipy.signal.butter(2,1,analog=1)
zp = scipy.signal.freqz(b, a)

matplotlib.pyplot.plot(zp)
matplotlib.pyplot.xlim([0, pi])
matplotlib.pyplot.ylim([0, 2])
matplotlib.pyplot.show()

Python links

• Learn Python: https://pythonbasics.org/
• Python Tutorial: https://pythonprogramminglanguage.com