Results 21 to 30 of about 4,375 (273)

Generation of hybrid grids over plane domains

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The paper presents an algorithm of coverage 2-D multiconnected domain by trianlges and quadrilaterals. The zone covered with quadrilaterals is structured, thus the zone covered with triangles is unstructured.
Jan Kucwaj
doaj  

On quadrilaterals in the suborbital graphs of the normalizer [PDF]

open access: yesTransactions on Combinatorics, 2020
n this paper‎, ‎we investigate suborbital graphs formed by $N\big(\Gamma_0(N)\big)$-invariant equivalence relation induced on $\hat{\mathbb{Q}}$‎. ‎Conditions for being an edge are obtained as a main tool‎, ‎then necessary and sufficient conditions for ...
Serkan Kader   +2 more
doaj   +1 more source

Quadrilateral Meshes for PSLGs [PDF]

open access: yesDiscrete & Computational Geometry, 2016
55 pages, 39 ...
openaire   +3 more sources

Method of Real-Time Wellbore Surface Reconstruction Based on Spiral Contour

open access: yesEnergies, 2021
A wellbore surface is an irregular surface structure. The distribution of points on the wellbore surface measured based on the drilling diameter is not uniform.
Hongqiang Li, Ruihe Wang
doaj   +1 more source

Learning trajectory of quadrilaterals learning using the context of Burongko Bugis cake to improve students’ critical thinking

open access: yesJurnal Elemen, 2022
One goal of learning mathematics is to foster students’ critical thinking skills, but this has not been realized well in Indonesia. This study aims to produce a learning trajectory that can help students grow their critical thinking skills in studying ...
Andi Aras   +3 more
doaj   +1 more source

A note on on-line Ramsey numbers for quadrilaterals [PDF]

open access: yesOpuscula Mathematica, 2014
We consider on-line Ramsey numbers defined by a game played between two players, Builder and Painter. In each round Builder draws an the edge and Painter colors it either red or blue, as it appears.
Joanna Cyman, Tomasz Dzido
doaj   +1 more source

Counting shapes (triangles and quadrilaterals)

open access: yes, 2022
The artificially generated toy dataset consists of 25,000 RGB images. Each image is 1024x1024 pixels in size and contains a random number of triangles and quadrilaterals, of different colors and sizes.
Mario Milicevic (9103781)
core   +1 more source

Are Bilinear Quadrilaterals Better Than Linear Triangles? [PDF]

open access: yes, 1993
This paper compares the theoretical effectiveness of bilinear approximation over quadrilaterals with linear approximation over triangles. Anisotropic mesh transformation is used to generate asymptotically optimally efficient meshes for piecewise linear ...
D'Azevedo, E.F.
core   +2 more sources

Development of Definitory and Classificatory Thinking in Geometry through Storytelling and GBL Activities

open access: yesEducation Sciences
Little is discussed regarding the meaning of “definition” in primary school, where children often memorize definitions. In geometry, students frequently confuse “definition” with the “description” of a geometric object. The aim of this study is to verify
Leonardo Tortorelli   +1 more
doaj   +1 more source

RANCANGAN PEMBELAJARAN BERBASIS KATA SEPAT UNTUK MEMPELAJARI SIFAT-SIFAT SEGI EMPAT

open access: yesJurnal Lebesgue, 2023
The aim of this study was to analyze the difficulties of teachers and students in teaching and learning material on the properties of quadrilateral. Based on these difficulties the researcher designed learning activities based on Kata Sepat which would ...
Rini Utami   +2 more
doaj   +1 more source

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