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Title: Allow static gain StateSpace objects to be straightforwardly created. by roryyorke · Pull Request #107 · python-control/python-control · GitHub

Open Graph Title: Allow static gain StateSpace objects to be straightforwardly created. by roryyorke · Pull Request #107 · python-control/python-control

X Title: Allow static gain StateSpace objects to be straightforwardly created. by roryyorke · Pull Request #107 · python-control/python-control

Description: Lets the (fairly?) obvious StateSpace([],[],[],D) work. One could previously create these by, e.g., converting a static gain TransferFunction to a StateSpace object. In this case A will be 0-by-0, B 0-by-inputs, and C outputs-by-0. My intuition is that this is a generally correct approach (consider the simplification of _remove_useless_states, for example), but it may require some thought during review.

Open Graph Description: Lets the (fairly?) obvious StateSpace([],[],[],D) work. One could previously create these by, e.g., converting a static gain TransferFunction to a StateSpace object. In this case A will be 0-by-0,...

X Description: Lets the (fairly?) obvious StateSpace([],[],[],D) work. One could previously create these by, e.g., converting a static gain TransferFunction to a StateSpace object. In this case A will be 0-by-0,...

Opengraph URL: https://github.com/python-control/python-control/pull/107

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e8ee43f BugFix?: allow straightforward creation of static gain StateSpace obj… roryyorke Aug 11, 2016 https://github.com/python-control/python-control/pull/107/commits/e8ee43f5766d831a6ae34a73c8f9e0feffd436f9
7382644 BugFix: fix Python 2.7 failure. roryyorke Aug 11, 2016 https://github.com/python-control/python-control/pull/107/commits/738264455e0fa71f9c4f5c6162b014c7350ed45f
2794260 MessageFix: remove extra 'C' roryyorke Aug 12, 2016 https://github.com/python-control/python-control/pull/107/commits/27942600f44afc75c540f252dd21dcb85170a775
e640b17 BugFix: allow empty (no input or output) StateSpace objects. roryyorke Sep 18, 2016 https://github.com/python-control/python-control/pull/107/commits/e640b1785739a81254ccde069a777cfcb574ca13
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