#!/usr/bin/python
## 8.1
import os, sys
sys.path += [os.getcwdu() + os.sep + ".." + os.sep + "python"]

import scipy as sp
from scipy import signal
from dscr import dscr

n = 10
d = [5, 1] 
Ts = 0.5
H = signal.lti(n, d)

H = dscr(H,Ts)
n, d = H.num, H.den

print "Numerator: ", n
print "Denominator: ", d
print "Sampling Time: ", Ts