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

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James Lockhart
James Lockhart il 17 Feb 2020
Risposto: Renato SL il 18 Feb 2020
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

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Renato SL
Renato SL il 18 Feb 2020
Maybe you can use a Delay block (documentation here).
The blocks would look like this:

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