How are the IC's calculated in the IIR Cascade Filter with I.C. vi

Solved this myself.
Attached llb has subVI that computes the IC's needed to remove transient given a constant value step input to the IIR Filter.
Computes filter state (see app note 39) for cascade filter using z-transform final value theorem.
This version works for all filter types, ie lowpass, highpass, bandstop and bandpass.
Attachments:
IIR_Filter_with_I.C._set_to_Final_State.llb ‏94 KB

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Variable
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tried attaching the attachments ( but service is unavailable)
Waiting for all of your valuable suggestions..

1) why was I not getting the formula right when I use & Tops
I'm assuming that BE Fixed Cost has N for IsICP, in that case you can not write to invalid intersections as it would attempt to use the same ICP information
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No
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How are the IC's calculated in the IIR Cascade Filter with I.C. vi

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