Results 31 to 40 of about 3,577 (203)

THE HYPERBOLOID OF REVOLUTION OF ONE NAPPE A RULED SURFACE GENERATING CONICS

open access: yesJournal of Industrial Design and Engineering Graphics, 2013
The paper intends to underline the property of the hyperboloid of revolution of one nappe to generate on its surface, when it is cut by a plane, the three known conics (ellipse, hyperbola and parabola).Cutting this surface by a plane, we find the ...
Gabriel Oprea, Ana Maria Mihaela Rugescu
doaj   +4 more sources

PENGEMBANGAN MODUL IRISAN KERUCUT BERBANTUAN GEOGEBRA

open access: yesAksioma: Jurnal Program Studi Pendidikan Matematika, 2017
The aim of this research was to develop a conic section modul. The modul used GeoGebra in presenting material. This research used development model of Plomp, with three step including preliminary research, prototyping stage and assesment phase.
Arta Ekayanti
doaj   +1 more source

Area Properties of Strictly Convex Curves

open access: yesMathematics, 2019
We study functions defined in the plane E 2 in which level curves are strictly convex, and investigate area properties of regions cut off by chords on the level curves.
Dong-Soo Kim   +2 more
doaj   +1 more source

FERTILIZER METERING MECHANISM WITH HELICAL CONIC CYLINDRICAL THREAD FOR FAMILY AGRICULTURE [PDF]

open access: yesEngenharia Agrícola, 2018
Small rural farms are important for Brazilian agribusiness, but equipment suitable for distributing fertilizers on these properties is scarce. We studied a new fertilizer metering mechanism for use on the family farm.
Cezario B. Galvão   +3 more
doaj   +1 more source

Micro Aspheric Convex Lenses Fabricated by Precise Scraping

open access: yesMicromachines, 2022
An easy, fast, inexpensive, and simple method utilizing a microshaper with a very small knife nose is used to fabricate microconvex aspherical lenses. The microshaper is mounted on a computer numerical control (CNC) machine.
Meng-Ju Lin
doaj   +1 more source

Birational Geometry of 3-fold Mori Fibre Spaces [PDF]

open access: yes, 2004
We study the geography and birational geometry of 3-fold conic bundles over P\(^2\) and cubic del Pezzo fibrations over P\(^1\).
Brown, G., Corti, A., Zucconi, F.
core  

Tangent lines to a conic section

open access: yes, 2011
Analytic Geometry, Conic Sections, CurvesSuppose that (x0,y0) is a point on the conic section Ax^2+Bxy+Cy^2+Dx+Ey+F=0. Then the tangent line to the conic section at point (x0,y0) is (2Ax0+by0+D)x+(Bx0+2Cy0+E)y-Axo^2-Bx0y0-Cy0^2+F=0Componente Curricular ...
Martínez, Soledad, Rosa, Felix
core   +1 more source

Analysis of Students’ Mathematical Representation Ability in Working on Conical Section Problems

open access: yesEdumatica: Jurnal Pendidikan Matematika
This study aims to analyze students’ representational ability in working on conic section problems. This study is included in case study research using a qualitative approach. The subjects of this study were students of Widya Dharma University.
Muhammad Ridlo Yuwono   +2 more
doaj   +1 more source

Conic Section Elements Based on the Rational Absolute Nodal Coordinate Formulation

open access: yesMathematics
The construction of rational absolute nodal coordinate formulation (RANCF) elements is usually based on a linear transformation of non-uniform rational B-spline (NURBS) geometry.
Yaxiong Liu   +3 more
doaj   +1 more source

THE CONTINUOUS WAVELET TRANSFORM ON CONIC SECTIONS [PDF]

open access: yesInternational Journal of Wavelets, Multiresolution and Information Processing, 2008
We review the coherent state (or group-theoretical) construction of the continuous wavelet transform (CWT) on the two-sphere. Next, we describe the construction of a CWT on the upper sheet of a two-sheeted hyperboloid, emphasizing the similarities between the two cases.
Jean-Pierre Antoine   +2 more
openaire   +2 more sources

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