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Small updates from Caltech CDS 110 #995

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Small updates from Caltech CDS 110 #995

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03c6bf3
set response I/O labels from system for frequency response
murrayrm Apr 17, 2024
4905855
add better check for find_eqpt with mixed specifications
murrayrm Apr 20, 2024
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3 changes: 2 additions & 1 deletion control/lti.py
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Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,8 @@ def frequency_response(self, omega=None, squeeze=None):
response = self(s)
return FrequencyResponseData(
response, omega, return_magphase=True, squeeze=squeeze,
dt=self.dt, sysname=self.name, plot_type='bode')
dt=self.dt, sysname=self.name, inputs=self.input_labels,
outputs=self.output_labels, plot_type='bode')

def dcgain(self):
"""Return the zero-frequency gain"""
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6 changes: 3 additions & 3 deletions control/nlsys.py
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Expand Up @@ -1746,9 +1746,9 @@ def find_eqpt(sys, x0, u0=None, y0=None, t=0, params=None,

# Make sure the input arguments match the sizes of the system
if len(x0) != nstates or \
(u0 is not None and len(u0) != ninputs) or \
(y0 is not None and len(y0) != noutputs) or \
(dx0 is not None and len(dx0) != nstates):
(u0 is not None and iu is None and len(u0) != ninputs) or \
(y0 is not None and iy is None and len(y0) != noutputs) or \
(dx0 is not None and idx is None and len(dx0) != nstates):
raise ValueError("length of input arguments does not match system")

# Update the parameter values
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