Results 31 to 40 of about 6,328 (160)

UNFOLDED REGULAR AND SEMI-REGULAR POLYHEDRA

open access: yesJournal of Industrial Design and Engineering Graphics, 2015
This paper proposes a presentation unfolding regular and semi-regular polyhedra. Regular polyhedra are convex polyhedra whose faces are regular and equal polygons, with the same number of sides, and whose polyhedral angles are also regular and equal ...
Elena Ionita   +2 more
doaj   +4 more sources

Linear best method for recovering the second derivatives of Hardy class functions [PDF]

open access: yesE3S Web of Conferences, 2020
The linear best method for approximating the second derivatives of Hardy class functions defined in the unit circle at zero in accordance with the information about their values in a finite number of points forming a regular polygon is found.
Ovchintsev Mikhail
doaj   +1 more source

Random Polygons and Estimations of π

open access: yesOpen Mathematics, 2019
In this paper, we study the approximation of π through the semiperimeter or area of a random n-sided polygon inscribed in a unit circle in ℝ2. We show that, with probability 1, the approximation error goes to 0 as n → ∞, and is roughly sextupled when ...
Xu Wen-Qing, Meng Linlin, Li Yong
doaj   +1 more source

Multi-robot control for a static polygon formation using Neighbor-Leader algorithm

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
One of the biggest open challenges to the robotic system is controlling robots formation. Its importance has been noted in a wide variety of applications, from truck platoons to robot-based standalone parcel delivery.
Bayadir A. Issa   +1 more
doaj   +1 more source

Buckling loads of columns of regular polygon cross-section with constant volume and clamped ends

open access: yesElectronic Journal of Structural Engineering, 2002
A numerical method is developed for calculating the buckling loads of tapered columns of regular polygon cross-section with constant volume and both clamped ends. The linear, parabolic and sinusoidal tapers are considered in numerical examples. From the
Byoung Koo Lee, Sang Jin Oh, Guangfan Li
doaj  

On Ranks of Regular Polygons

open access: yesSIAM Journal on Discrete Mathematics, 2017
In this paper we study various versions of extension complexity for polygons through the study of factorization ranks of their slack matrices. In particular, we develop a new asymptotic lower bound for their nonnegative rank, shortening the gap between the current bounds, we introduce a new upper bound for their boolean rank, deriving from it some new ...
Goucha, António Pedro   +2 more
openaire   +2 more sources

Lattice ℂP N−1 model with ℤ N twisted boundary condition: bions, adiabatic continuity and pseudo-entropy

open access: yesJournal of High Energy Physics, 2020
We investigate the lattice ℂP N−1 sigma model on S s 1 $$ {S}_s^1 $$ (large) × S τ 1 $$ {S}_{\tau}^1 $$ (small) with the ℤ N symmetric twisted boundary condition, where a sufficiently large ratio of the circumferences (L s ≫ L τ ) is taken to approximate
Toshiaki Fujimori   +4 more
doaj   +1 more source

Regular meshes from polygonal patterns

open access: yesACM Transactions on Graphics, 2017
We present a framework for designing shapes from diverse combinatorial patterns, where the vertex 1-rings and the faces are as rotationally symmetric as possible, and define such meshes as regular. Our algorithm computes the geometry that brings out the symmetries encoded in the combinatorics. We then allow designers and artists to envision and realize
Vaxman, Amir   +2 more
openaire   +3 more sources

Regular Steiner polygons

open access: yesApplied Mathematics Letters, 1998
Let a convex polygon \(P\) be approximated by a regular polygon \(R_n\) with \(n\) sides such that the area of their symmetric difference, i.e. the region that belongs to exactly one of them, is as small as possible. The author further assumes \(R_n\) to have the same perimeter as \(P\).
openaire   +1 more source

Some contributions to Regular Polygons

open access: yes, 2016
9 pages, 4 ...
ÖNCEL, Deniz, KİRİŞÇİ, Murat
openaire   +3 more sources

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