Implements a discrete transfer function defined by the poles, zeros, and gain.

Parameters
zeros	Vector<float>	Zeros vector	vectorFloat(1,1.0)
poles	Vector<float>	Poles vector	vectorFloat(2,1.0,0.5)
complexZeros	Vector<Complex>	Complex zeros vector	Vector()
complexPoles	Vector<Complex>	Complex poles vector	Vector()
gain	float	Gain	1
sampleTime	double	Time interval between samples in seconds	1
priority	int	Ordering priority	0
Inputs
u	float	Input	0
Outputs
y	float	Output	0
Subsystems
Last Saved: Wed May 23 22:13:29 MDT 2001 by TVE version 2007B