Results 31 to 40 of about 264,882 (186)
Boletim Cearense de Educação e História da Matemática, 2018 Neste artigo, como uma síntese de nossa pesquisa de dissertação de mestrado, na qual nos dedicamos a estudar a vida do matemático italiano Leonardo Fibonacci (1180 - 1250) e de uma de suas obras, o Liber Quadratorum (1225).
José dos Santos Guimarães Filho +1 more
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Stability Analysis of a Class of Higher Order Difference Equations
Abstract and Applied Analysis, Volume 2014, Issue 1, 2014., 2014 We consider the sufficient conditions for asymptotic stability and instability of certain higher order nonlinear difference equations with infinite delays in finite‐dimensional spaces. With the aid of the general comparison condition on the right‐hand side function fk(·), we generalize the stability and instability result.
Yuanyuan Liu, Fanwei Meng, Yonghui Xia
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The Fibonacci sequence and the nature of mathematical discovery: A semiotic perspective
Sign Systems Studies, 2005 This study looks at the relation between mathematical discovery and semiosis, focusing on the famous Fibonacci sequence. The serendipitous discovery of this sequence as the answer to a puzzle designed by Italian mathematician Leonardo Fibonacci to ...
Marcel Danesi
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On Skew Circulant Type Matrices Involving Any Continuous Fibonacci Numbers
Abstract and Applied Analysis, Volume 2014, Issue 1, 2014., 2014 Circulant and skew circulant matrices have become an important tool in networks engineering. In this paper, we consider skew circulant type matrices with any continuous Fibonacci numbers. We discuss the invertibility of the skew circulant type matrices and present explicit determinants and inverse matrices of them by constructing the transformation ...
Zhaolin Jiang +3 more
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O Código Da Vinci e o encontro entre Matemática, História e Arte
Educação Matemática Debate, 2021 O romance O Código Da Vinci, escrito por Dan Brown, teve uma enorme repercussão, tendo vendido milhões de cópias em todo o mundo. Mas, foi com a sua adaptação para o cinema, em 2006, que horizontes se ampliaram, alcançando ainda mais indivíduos.
Felipe Freitas Paulino +2 more
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On the Hyperbolic Leonardo and Hyperbolic Francois Quaternions
Journal of New Theory, 2023 In this paper, we present a new definition, referred to as the Francois sequence, related to the Lucas-like form of the Leonardo sequence. We also introduce the hyperbolic Leonardo and hyperbolic Francois quaternions.
Paula Maria Machado Cruz Catarino +2 more
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The Golden Ratio of Gait Harmony: Repetitive Proportions of Repetitive Gait Phases
BioMed Research International, Volume 2013, Issue 1, 2013., 2013 In nature, many physical and biological systems have structures showing harmonic properties. Some of them were found related to the irrational number ϕ known as the golden ratio that has important symmetric and harmonic properties. In this study, the spatiotemporal gait parameters of 25 healthy subjects were analyzed using a stereophotogrammetric ...
Marco Iosa +7 more
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Some Properties of the Generalized Leonardo Numbers
Journal of New TheoryIn this study, various properties of the generalized Leonardo numbers, which are one of the generalizations of Leonardo numbers, have been investigated. Additionally, some identities among the generalized Leonardo numbers have been obtained. Furthermore,
Yasemin Alp
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SOBRE A DIVULGAÇÃO DO SISTEMA INDO-ARÁBICO NA EUROPA NO SÉCULO XIII
Boletim Cearense de Educação e História da Matemática, 2020 Nesta comunicação apresentamos alguns pontos que nos permite de forma preliminar investigar sobre a divulgação dos algarismos indo-arábicos na Europa no século XIII, afinal, estes se constituem ao longo da história humana como um sistema universal. Com a
José dos Santos Guimarães Filho +1 more
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Mathematical Problems in Engineering, Volume 2012, Issue 1, 2012., 2012 This paper proposes a predictor‐corrector primal‐dual interior point method which introduces line search procedures (IPLS) in both the predictor and corrector steps. The Fibonacci search technique is used in the predictor step, while an Armijo line search is used in the corrector step.
Antonio Roberto Balbo +4 more
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