Results 1 to 10 of about 5,316 (155)

Numerous but rare: an exploration of magic squares. [PDF]

open access: yesPLoS ONE, 2015
How rare are magic squares? So far, the exact number of magic squares of order n is only known for n ≤ 5. For larger squares, we need statistical approaches for estimating the number.
Akimasa Kitajima, Macoto Kikuchi
doaj   +2 more sources

Rapid and Efficient Optimization of Poly(1,2-Ethanediol Citrate) Synthesis Based on Magic Squares’ Various Methods [PDF]

open access: yesGels, 2022
New biomaterials among aliphatic polyesters are in demand due to their potential applications in tissue engineering. There is a challenge not only to design scaffolds to regenerate defects in load-bearing tissues but also to ensure a proper blood supply ...
Joanna Howis   +2 more
doaj   +2 more sources

Vector Spaces of New Special Magic Squares: Reflective Magic Squares, Corner Magic Squares, and Skew-Regular Magic Squares

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2016
The definition of a regular magic square motivates us to introduce the new special magic squares, which are reflective magic squares, corner magic squares, and skew-regular magic squares.
Thitarie Rungratgasame   +4 more
doaj   +3 more sources

Some results on magic squares based on generating magic vectors and R-C similar transformations

open access: yesSpecial Matrices, 2017
In this paper we propose a new method, based on R-C similar transformation method, to study classification for the magic squares of order 5. The R-C similar transformation is defined by exchanging two rows and related two columns of a magic square.
Kai-Tai Fang, Xiaoyang Ma
exaly   +2 more sources

Prime Strictly Concentric Magic Squares of Odd Order

open access: yesMathematics
Magic squares have been widely studied, with publications of mathematical interest dating back over 100 years. Most studies construct and analyse specific subsets of magic squares, with some exploring links to puzzles, number theory, and graph theory ...
Anna Skelt   +2 more
exaly   +3 more sources

Harnessing faba bean MAGIC populations for enhanced protein content, yield, and agronomic performance in diverse environments [PDF]

open access: yesFrontiers in Plant Science
Faba bean (Vicia faba L.) is an increasingly important source of plant-based protein; however, improving both grain yield and protein content remains a major breeding challenge.
Lynn Abou Khater   +9 more
doaj   +2 more sources

Development and validation of a risk prediction model for prostate cancer integrating quantitative MRI and clinical data [PDF]

open access: yesFrontiers in Oncology
ObjectivesTo develop and validate a predictive model for prostate cancer (PCa)by integrating quantitative MRI and clinical data.MethodsA retrospective study was conducted on 290 patients clinically diagnosed with prostate lesions between March 2023 and ...
Yafei Zhang   +5 more
doaj   +2 more sources

Magic Squares

open access: yesSources and Studies in the History of Mathematics and Physical Sciences, 2019
Magic squares are an important part of recreational mathematics. And they can be used in mathematics education, through problem solving, explorations, investigations, even with algorithmic procedures. Magic squares, on the other hand have not been invented in western mathematics, they were known in China and certainly were passed on from Africa to ...
exaly   +5 more sources

Computation of Odd Magic Square Using a New Approach with Some Properties [PDF]

open access: yesEngineering and Technology Journal, 2012
Several aspects of magic square studies fall within the computations all universes. Experimented computation has reverted patterns, some of which have lead to analytic insight.
Shatha A. Al-Najjar   +2 more
doaj   +1 more source

On Multiplicative Magic Squares [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2010
In this note, we give a lower bound for the distance between the maximal and minimal element in a multiplicative magic square of dimension $r$ whose entries are distinct positive integers.
Javier Cilleruelo, Florian Luca
openaire   +3 more sources

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