adrianschlatter / tanuna

Python tools to work with dynamic systems.
BSD 3-Clause "New" or "Revised" License
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tf of system with zero DC-gain #5

Closed adrianschlatter closed 8 years ago

adrianschlatter commented 8 years ago

High-pass systems have a zero at s=0. CT_LTI_System.tf() normalizes the nominator polynomials based on the DC-gain => NaN!