منابع مشابه
TRANSITION BEHAVIOR OF k-SURFACE: FROM HYPERBOLA TO ELLIPSE
The transition behavior of the k-surface of a lossy anisotropic indefinite slab is investigated. It is found that, if the material loss is taken into account, the k-surface does not show a sudden change from hyperbola to the ellipse when one principle element of the permittivity tensor changes from negative to positive. In fact, after introducing a small material loss, the shape of the k-surfac...
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The least-squares "tting minimizes the squares sum of error-of-"t in prede"ned measures. By the geometric "tting, the error distances are de"ned with the orthogonal, or shortest, distances from the given points to the geometric feature to be "tted. For the geometric "tting of circle/sphere/ellipse/hyperbola/parabola, simple and robust nonparametric algorithms are proposed. These are based on th...
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For fitting an ellipse to a point sequence, ML (maximum likelihood) has been regarded as having the highest accuracy. In this paper, we demonstrate the existence of a “hyperaccurate” method which outperforms ML. This is made possible by error analysis of ML followed by subtraction of high-order bias terms. Since ML nearly achieves the theoretical accuracy bound (the KCR lower bound), the result...
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ژورنال
عنوان ژورنال: Recreational Mathematics Magazine
سال: 2018
ISSN: 2182-1976
DOI: 10.2478/rmm-2018-0006