**54**(2021)

ISSN 1787-6117 (Online)

## Content

### Research papers

A short remark on Horadam identities with binomial coefficients

by Robert Frontczak

Pages: 5–13

DOI: 10.33039/ami.2021.03.016

Corrigendum to “Pentagonal and heptagonal repdigits” [Annales Mathematicae et Informaticae 52 (2020) 137–145]

by Bir Kafle, Florian Luca, Alain Togbé

Pages: 15–16

DOI: 10.33039/ami.2021.03.010

Warshall’s algorithm—survey and applications

by Zoltán Kása

Pages: 17–31

DOI: 10.33039/ami.2021.08.001

Introducing w-Horn and z-Horn: A generalization of Horn and q-Horn formulae

by Gábor Kusper, Csaba Biró, Attila Adamkó, Imre Baják

Pages: 33–43

DOI: 10.33039/ami.2021.03.009

Comparison of single and ensemble-based convolutional neural networks for cancerous image classification

by Oktavian Lantang, Gyorgy Terdik, Andras Hajdu, Attila Tiba

Pages: 45–56

DOI: 10.33039/ami.2021.03.013

On the intersection of Padovan, Perrin sequences and Pell, Pell-Lucas sequences

by Salah Eddine Rihane, Alain Togbé

Pages: 57–71

DOI: 10.33039/ami.2021.03.014

The structure of the unit group of the group algebra F(C_{3} × D_{10})

by Meena Sahai, Sheere Farhat Ansari

Pages: 73–82

DOI: 10.33039/ami.2021.09.001

Efficient Taylor expansion computation of multidimensional vector functions on GPU

by Vaclav Skala

Pages: 83–95

DOI: 10.33039/ami.2021.03.004

Vieta–Fibonacci-like polynomials and some identities

by Wanna Sriprad, Somnuk Srisawat, Peesiri Naklor

Pages: 97–108

DOI: 10.33039/ami.2021.09.002

On structure of the family of regularly distributed sets with respect to the union

by Szilárd Svitek, Miklós Vontszemű

Pages: 109–119

DOI: 10.33039/ami.2021.10.001

The Diophantine equation x^{2} + 3^{a} · 5^{b} · 11^{c} · 19^{d} = 4y^{n}

by Nguyen Xuan Tho

Pages: 121–139

DOI: 10.33039/ami.2021.08.002

What positive integers n can be presented in the form n = (x + y + z)(1/x + 1/y + 1/z)?

by Nguyen Xuan Tho

Pages: 141–146

DOI: 10.33039/ami.2021.04.005

Script-aided generation of Mental Cutting Test exercises using Blender

by Róbert Tóth

Pages: 147–161

DOI: 10.33039/ami.2021.03.011

Route planning on GTFS using Neo4j

by Anikó Vágner

Pages: 163–179

DOI: 10.33039/ami.2021.07.001

### Methodological papers

Visual argumentations in teaching trigonometry

by Francesco Laudano

Pages: 183–193

DOI: 10.33039/ami.2021.10.002

Teaching numeral systems based on history in high school

by Zoltán Matos, Eszter Kónya

Pages: 195–204

DOI: 10.33039/ami.2021.08.003

On some methods of calculating the integrals of trigonometric rational functions

by Michał Różański, Barbara Smoleń-Duda, Roman Wituła, Marcin Jochlik, Adrian Smuda

Pages: 205–214

DOI: 10.33039/ami.2021.10.003

On a metamatemEthical question in talent care

by Csaba Szabó, Csilla Bereczky-Zámbó, Júlia Szenderák, Janka Szeibert

Pages: 215–230

DOI: 10.33039/ami.2021.04.004