Some Math Quizzes for Presenting a Number by Using Equal Digits and Math Operations
Deyan Mihaylov, Velina Yordanova University of Economics – Varna (Bulgaria) Abstract. This paper gives a formalization of a problem for...
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A Note on the Arbelos in Wasan Geometry: Satoh’s Problem ND a Circle Pattern
Hiroshi Okumura Maebashi Gunma (Japan) Abstract. We generalize a problem in Wasan geometry involving an arbelos, and construct a self-similar...
See moreFormulaes for the Distances from the Brocardians and the Miquel Point in a Quadrilateral to Its Vertices and the Midpoints of Its Sides and Diagonals
(1) Веселин Ненков, (2) Станислав Стефанов, Хаим Хаимов (1) Висше военноморско училище „Н. Й. Вапцаров“ – Варна (2) Технически университет...
See moreOn the Concept of Bitwise Operations in the Programming Courses
Krasimir Yordzhev South-West University ”Neofit Rilski” – Blagoevgrad (Bulgaria) Abstract. This article is intended for anyone who studies programming, as...
See moreResults of the First Week of Cybersecurity in Arkhangelsk Region
Olga Troitskaya, Olga Bezumova, Elena Lytkina,Tatyana Shirikova Northern (Arctic) Federal University – Arkhangelsk (Russia) Abstract. The question of the need...
See moreDidactic Potential of Remote Contests in Computer Science
Natalia Sofronova, Anatoliy Belchusov Chuvash State Pedagogical University (Russia) Abstract. A remote contest is a form of extracurricular students’ activity....
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See moreSolutions of the Contest Problems from Issue 4, 2018
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See moreFactors in the International Activity of the Bulgarian Learned Society until the Early ХХ Century
Цветан Й. Радулов Научен архив – БАН Резюме. През 1869 г. се стига до създаването на Книжовно дружество в Браила...
See moreThe Political Presence of the Renewed Bulgarian Kingdom in Moldova (XII – XIV Century)
Тервел Попов Софийски университет „Св. Климент Охридски“ Резюме. В настоящата работа са представени редица писмени извори (западни трактати, писма, исторически...
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София 1113, бул. “Цариградско шосе” № 125, бл. 5