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Title: new method keyword in stability_margins and auto-fallback back to FRD .. by sawyerbfuller · Pull Request #566 · python-control/python-control · GitHub

Open Graph Title: new method keyword in stability_margins and auto-fallback back to FRD .. by sawyerbfuller · Pull Request #566 · python-control/python-control

X Title: new method keyword in stability_margins and auto-fallback back to FRD .. by sawyerbfuller · Pull Request #566 · python-control/python-control

Description: ... when it is detected that there may be numerical inaccuracy in dt polynomial calculation. this is intended to resolve numerical issue observed in DT margin calculation when there is a large difference between the size of numerator and denominator coefficients #523. I am not sure how good the method is I used to detect this issue is any good. In fact I am sure it is not. comments welcome here. can use method='poly' to override and force polynomial evaluation, or method='FRD' to force to using interpolated FRD to calculate gain and phase crossover frequencies.

Open Graph Description: ... when it is detected that there may be numerical inaccuracy in dt polynomial calculation. this is intended to resolve numerical issue observed in DT margin calculation when there is a large dif...

X Description: ... when it is detected that there may be numerical inaccuracy in dt polynomial calculation. this is intended to resolve numerical issue observed in DT margin calculation when there is a large dif...

Opengraph URL: https://github.com/python-control/python-control/pull/566

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