Results 11 to 20 of about 1,036,417 (320)

Intuitionistic fuzzy projective geometry [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2009
:In this paper , we introduce a new model of intuitionistic fuzzy projective geometry . In this model points and lines play a similar role , like they do in classical projective plane .
Ghassan E. Arif
doaj   +1 more source

Analisis Kesulitan Belajar Siswa pada Materi Geometri Di Sekolah Dasar

open access: yesKreano: Jurnal Matematika Kreatif-Inovatif, 2020
Geometri adalah cabang matematika yang diajarkan dengan tujuan agar siswa dapat memahami sifat-sifat dan hubungan antar unsur geometri serta dapat mendorong siswa untuk dapat berpikir secara kritis dan memecahkan masalah dalam kehidupan sehari-hari ...
Irfan Fauzi, Andika Arisetyawan
doaj   +1 more source

On the Design of 2D Dynamic Drawings with Euklid DynaGeo

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
Nowadays in the plane geometry with the advancement of technology, the geometric constructions are designed and processed using the 2D dynamic geometry software’s (DGSs).
Engin Can
doaj   +1 more source

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

THE GEOMETRY OF CROOKED PLANES

open access: yesTopology, 1999
In [Topology 31, No. 4, 677-683 (1992; Zbl 0773.57008)], the first author constructed non-compact fundamental polyhedra for subgroups \(\Gamma\) of \(\text{ SO}_0(2,1)\) acting properly discontinuously on the Euclidean 3-space \(E\). This construction is based on Poincaré's fundamental polyhedron method.
Todd A. Drumm, William M. Goldman
openaire   +2 more sources

MEASURING IN IMAGES WITH PROJECTIVE GEOMETRY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
There is a fundamental relationship between projective geometry and the perspective imaging geometry of a pinhole camera. Projective scales have been used to measure within images from the beginnings of photogrammetry, mostly the cross-ratio on a ...
B. Erdnüß, B. Erdnüß
doaj   +1 more source

How Indonesian Students Use the Polya’s General Problem Solving Steps

open access: yesSoutheast Asian Mathematics Education Journal, 2018
General problem-solving steps consist of understanding the problem, developing a plan, implementing the plan and checking the result. The purpose of this study is to explore how well Indonesia junior secondary school students apply these four steps in ...
Hari Pratikno, Endah Retnowati
doaj   +1 more source

Analysis of students’ mathematical communication skills in web-based geometry in space and plane learning

open access: yesJournal of Research and Advances in Mathematics Education, 2022
Mathematical communication skill in a mathematics learning process isa basic skill that must be possessed by students in developing the ability to think, reason, and solve problems.
Nanang Priatna   +2 more
doaj   +1 more source

Geometry of plane curves

open access: yesBulletin des Sciences Mathématiques, 2011
AbstractIn this paper we obtain, for a class of plane curves, extensions of the well-known relation of inflection points, double points and bitangencies established by Fabricius-Bjerre for closed curves.
Luis Fernando Mello, Fabio Scalco Dias
openaire   +2 more sources

Hyperbolic plane geometry revisited [PDF]

open access: yes, 2014
Using the method of C. V\"or\"os, we establish results in hyperbolic plane geometry, related to triangles and circles. We present a model independent construction for Malfatti's problem and several trigonometric formulas for triangles.Comment: 21 pages 6
Horváth, Ákos G.
core   +1 more source

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