[python-control-developers] [python-control/python-control] fbefeb: Add similarity transformation function (#319)

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

  Branch: refs/heads/master
  Home:   https://github.com/python-control/python-control
  Commit: fbefeba7b02ce471ba92e29fa17830e8aad50a67
      https://github.com/python-control/python-control/commit/fbefeba7b02ce471ba92e29fa17830e8aad50a67
  Author: Richard Murray <mu...@cd...>
  Date:   2019-06-30 (Sun, 30 Jun 2019)

  Changed paths:
    M control/canonical.py
    M control/tests/canonical_test.py

  Log Message:
  -----------
  Add similarity transformation function (#319)

* add similarity transformation function (w/ optional time rescaling)

* update unit test to avoid bugs in modal form