Results 41 to 50 of about 3,577 (203)
Does any convex quadrilateral have circumscribed ellipses?
Open Mathematics, 2017 The past decades have witnessed several well-known beautiful conclusions on four con-cyclic points. With highly promising research value, we profoundly studied circumscribed ellipses of convex quadrilaterals in this paper.
Li Jia Hui +3 more
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Five Points Determine a Conic Section
, 2016 Five points determine a conic section. In this Demonstration, move up to six points, and see all the conic sections that pass through any subset of five pointsComponente Curricular::Educação Superior::Ciências Exatas e da Terra ...
Pegg Jr, Ed
core +1 more source
, 2022 To enhance understanding when analysing the intersection between a cone and a plane, it is helpful to have a simple 3-dimensional paper model of the intersection.
Johansson, Tomas
core
Suavizamiento de los vértices de un polígono por medio de un spline cónico
Revista Integración, 1997 We prove that every irreducible conic can be parametrically represented by two rational quadratic functions. An algorithm for smoothing the vertices of a poligonal by a conic spline with continuous tangent is proposed.
Victoria Hernádez Mederos
doaj
Five Points Determine a Conic Section
, 2011 Five points determine a conic section. In this Demonstration, move up to six points, and see all the conic sections that pass through any subset of five pointsComponente Curricular::Educação Superior::Ciências Exatas e da Terra ...
Pegg Jr, Ed
core +1 more source
Kepler’s Laws and Conic Sections [PDF]
Arnold Mathematical Journal, 2015 The Kepler's law reads as second order ODE \(\ddot{\pmb{\text{r}}} = -k |\pmb{\text{r}}|^{-3} \pmb{\text{r}}\), where \(\pmb{\text{r}}=(x,y)\) is the position of a planet \(P\) in the \(Oxy\)-plane and \(k\) is a coefficient of proportionality in the Newton law \(F=ma\). The author lifts \(P\) on the cone \(r^2=x^2+y^2\) and represents the lifted point
openaire +1 more source
Probabilistic Detection and Estimation of Conic Sections From Noisy Data
, 2020 Inferring unknown conic sections on the basis of noisy data is a challenging problem with applications in computer vision. A major limitation of the currently available methods for conic sections is that estimation methods rely on the underlying shape of
Subharup Guha (8531376) +1 more
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A MATHEMATICAL SENSOR MODEL FOR INDOOR USE OF A MULTI-BEAM ROTATING 3D LIDAR [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Our contribution presents a new perspective in the mathematical description of a rotating multi-beam LiDAR sensor, in a sense that we make use of projective geometry along with the “homogeneous general equation of the second degree” to parametrize scan ...
L. S. Tessema +3 more
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Jixie chuandong, 2011 Surfaces shaped by conic sections are widely applied in engineering practice.Grinding machining based on custom macro B is proposed to improve efficiency and accuracy of taper ellipsoid manufacturing.The tool moves exactly according to the section ...
赵文辉, 段振云, 何龙, 任仲伟
doaj
An Exact Top- Query Algorithm with Privacy Protection in Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2014 Aimed at the Top- k query problems in the wireless sensor networks (WSN) where enquirers try to seek the k highest or shortest reported values of the source nodes, using privacy protection technology, we present an exact Top- k query algorithm based on ...
Huang Haiping +3 more
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