Issues

Issues

• describing_function_response reports sin(w*dt), not w, for discrete-time systems, and refines at z = jw

  python-control/python-control#1269 · opened on Nov 5, 2026
  8

• stability_margins misses a phase crossover at the Nyquist frequency (w = pi/dt) for discrete-time systems, so gm is inf when L(-1) < 0

  python-control/python-control#1267 · opened on Nov 4, 2026
  2

• stability_margins: 'poly' (and default 'best') returns spurious gain crossovers for discrete-time systems of moderate order; the root tolerance eps**(1/n) grows with degree

  python-control/python-control#1266 · opened on Nov 4, 2026
  2

• gangof4_plot(response) rejects precomputed responses with default options

  python-control/python-control#1264 · opened on Oct 28, 2026
  2

• Plotting while computing

  python-control/python-control#1260 · opened on Oct 26, 2026
  2

• interconnect reports "algebraic loop detected" for MIMO systems with feedthrough that have no (or a well-posed) algebraic loop

  python-control/python-control#1257 · opened on Oct 13, 2026

• phase_plane_plot generates warnings with latest version of numpy (2.5.x)

  python-control/python-control#1252 · opened on Sep 28, 2026
  1

• Incorrect indentation direction of poles in Nyquist plot

  python-control/python-control#1191 · opened on Jan 8, 2026
  6

• Unsupported NumPy datatype complex128

  Bug

  python-control/python-control#1188 · opened on Nov 24, 2025
  2

• Unexpected Phase Jumps in Bode Plot of Third-Order Systems with Zeros and Poles

  python-control/python-control#1179 · opened on Aug 5, 2025
  1

• Combination of transformations and reductions leads to model data corruption

  python-control/python-control#1177 · opened on Jul 29, 2025
  7

• dlqe should return Kalman filter gain rather than Kalman predictor gain

  python-control/python-control#1173 · opened on Jul 23, 2025
  1

• Bug in time_response_plot for multiple responses + improvements in input/output colors.

  python-control/python-control#1171 · opened on Jul 19, 2025

• model reduction by residualization not implemented or not documented

  python-control/python-control#1168 · opened on Jul 13, 2025 · 0.10.3
  5

• Tests fails

  python-control/python-control#1165 · opened on Jul 6, 2025
  6

• lqe default input noise matrix is undocumented and differs from Octave

  python-control/python-control#1159 · opened on Jun 23, 2025
  7

• provide more prominent interface for lft linear fractional transformation

  python-control/python-control#1156 · opened on Jun 22, 2025
  3

• too much white space around Root Locus with omega-damping grid

  python-control/python-control#1147 · opened on Apr 26, 2025
  5

• Improve numerical stability in computation of Cholesky-factored controllability gramian

  python-control/python-control#1123 · opened on Feb 7, 2025
  2

• Suggestion: improve MyBinder-served sessions with some minor changes

  python-control/python-control#1122 · opened on Feb 3, 2025

• Sporadically failing CI tests

  python-control/python-control#1119 · opened on Feb 2, 2025
  2

• pyflakes (pylint, ruff, ....) clean-up, CI?

  python-control/python-control#1101 · opened on Jan 19, 2025
  5

• Add automatic computation of initial phase

  python-control/python-control#1093 · opened on Jan 11, 2025

• Complex numbers in state space matrices get cast to real in control.StateSpace(...) constructor - a bug?

  python-control/python-control#1058 · opened on Nov 13, 2024
  1

• Slycot license is GPL whereas python-control license is BSD.

  python-control/python-control#1057 · opened on Nov 12, 2024
  5