TransferFunctionZeros[tfm] gives a matrix of roots of the numerators in the TransferFunctionModel tfm.
TransferFunctionZeros[tfm, reg] only gives the roots inside the region reg on the complex plane.
Compute the zeros for a SISO system:
Zeros for a MIMO system:
Time-delay systems may have infinite poles:
Get only the values within a square about the origin:
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