[python-control-developers] [python-control/python-control] 4381a7: merge the second example from #523 into test_stabi...

[Richard M. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/python-control/python-control
  Commit: 4381a7ecb12c65a468bd12c57bcd0b75ed477627
      https://github.com/python-control/python-control/commit/4381a7ecb12c65a468bd12c57bcd0b75ed477627
  Author: Ben Greiner <co...@bn...>
  Date:   2021-03-17 (Wed, 17 Mar 2021)

  Changed paths:
    M control/tests/margin_test.py

  Log Message:
  -----------
  merge the second example from #523 into test_stability_margins_discrete


  Commit: 52d8fc3210a26aad883a1b4c0658fa90cfeb7e5f
      https://github.com/python-control/python-control/commit/52d8fc3210a26aad883a1b4c0658fa90cfeb7e5f
  Author: Ben Greiner <co...@bn...>
  Date:   2021-03-17 (Wed, 17 Mar 2021)

  Changed paths:
    M control/margins.py

  Log Message:
  -----------
  improve error message display, ease poly to frd check


  Commit: 25001994f427124d7e70da6879d808287f7eeceb
      https://github.com/python-control/python-control/commit/25001994f427124d7e70da6879d808287f7eeceb
  Author: Richard Murray <mu...@cd...>
  Date:   2021-03-18 (Thu, 18 Mar 2021)

  Changed paths:
    M control/margins.py
    M control/tests/margin_test.py

  Log Message:
  -----------
  Merge pull request #575 from bnavigator/add-frd-margin-test

Ease cutoff between poly and frd method for stability margins


Compare: https://github.com/python-control/python-control/compare/b41574f72c0b...25001994f427