revert unneeded change on find_eqpt checks for arg lengths

murrayrm · murrayrm · commit d6432ca74be0 · 2024-06-08T06:38:13.000-07:00
diff --git a/control/nlsys.py b/control/nlsys.py
@@ -1767,9 +1767,9 @@ 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 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):
+       (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):
         raise ValueError("length of input arguments does not match system")
 
     # Update the parameter values
@@ -2572,7 +2572,7 @@ def interconnect(
     return newsys
 
 
-# Utility function to allow lists states, inputs
+# Utility function to allow lists of states, inputs
 def _concatenate_list_elements(X, name='X'):
     # If we were passed a list, concatenate the elements together
     if isinstance(X, (tuple, list)):
