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Title: Calculate poles more smarter for state-space systems · Issue #84 · python-control/python-control · GitHub

Open Graph Title: Calculate poles more smarter for state-space systems · Issue #84 · python-control/python-control

X Title: Calculate poles more smarter for state-space systems · Issue #84 · python-control/python-control

Description: As pointed out by @pmli in #27, the current implementation involves unnecessarily computing the characteristic polynomial, and then finding its roots. This is inefficient and numerically unstable. Much better to use np.linalg.eigvals.

Open Graph Description: As pointed out by @pmli in #27, the current implementation involves unnecessarily computing the characteristic polynomial, and then finding its roots. This is inefficient and numerically unstable. ...

X Description: As pointed out by @pmli in #27, the current implementation involves unnecessarily computing the characteristic polynomial, and then finding its roots. This is inefficient and numerically unstable. ...

Opengraph URL: https://github.com/python-control/python-control/issues/84

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Hey, it has json ld scripts: 
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Calculate poles more smarter for state-space systemshttps://github.com/python-control/python-control/issues/84#top
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on Apr 19, 2016https://github.com/python-control/python-control/issues/84#issue-149343207
@pmlihttps://github.com/pmli
#27https://github.com/python-control/python-control/issues/27
current implementationhttps://github.com/python-control/python-control/blob/0b26e062a6cd82da8a2420ebc3957e5267e6e116/control/statesp.py#L408
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