[python-control-developers] [python-control/python-control] 836680: added ability to 'prewarp' the conversion of conti...

[sawyerbfuller <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/python-control/python-control
  Commit: 8366806bc774d31ab946bb717e10a169f3247fdd
      https://github.com/python-control/python-control/commit/8366806bc774d31ab946bb717e10a169f3247fdd
  Author: sawyerbfuller <587...@us...>
  Date:   2020-07-11 (Sat, 11 Jul 2020)

  Changed paths:
    M control/dtime.py
    M control/statesp.py
    M control/tests/statesp_test.py
    M control/tests/xferfcn_test.py
    M control/xferfcn.py

  Log Message:
  -----------
  added ability to 'prewarp' the conversion of continuous to discrete-time systems (#417)

* added ability to 'prewarp' the conversion of continuous to discrete-time systems (in functions sample, sample_system, and c2d) , so that their gain and phase match at a specific desired frequency.