#!/usr/bin/python

# 7.8

import os, sys

sys.path += [os.getcwdu() + os.sep + ".." + os.sep + "python"]

import pylab as pl

from xdync import xdync

N = pl.convolve([0, 1], [1, 1])

D = pl.convolve([1, -4], [1, -1])

dN = 2

dD = 2

C = pl.array([1, -1, 0.5])

dC = 2

Y, dY, X, dX, B, dB, A, dA = xdync(N, dN, D, dD, C, dC)

print "Y =", Y

print "dY =", dY

print "X =", X

print "dX =", dX

print "B =", B

print "dB =", dB

print "A =", A

print "dA =", dA