MATLAB: How to enter z with negative exponent in the numerator of a discrete transfer function in simulink plant block

simulinkzt

I need to enter the following discrete transfer function in simulink. My problem is with the negative exponents of z in the numerator.
1.026e-05 z^3 + 1.638e-06 z^2 + 5.248e-12 z + 6.787e-32
z^(-3) * ——————————————————-
z^3 – 0.0003158 z^2 + 1.027e-23 z – 3.102e-44

Best Answer

Maybe you can use a Delay block (documentation here).
The blocks would look like this: