{"id":105639,"date":"2023-11-30T18:25:50","date_gmt":"2023-11-30T15:25:50","guid":{"rendered":"https:\/\/azbuki.bg\/?p=105639"},"modified":"2025-09-17T13:34:25","modified_gmt":"2025-09-17T10:34:25","slug":"sp-matematika-i-informatika-knizhka-6-2023-godina-lxvi","status":"publish","type":"post","link":"https:\/\/bel.azbuki.bg\/en\/matematics\/sadarzhanie-na-sp-matematika-i-informatika-2023-g\/sp-matematika-i-informatika-knizhka-6-2023-godina-lxvi\/","title":{"rendered":"Mathematics and Informatics, Number 6\/2023, Volume 66"},"content":{"rendered":"

Mirror (left-recursive) Gray Code<\/h3>\n

Valentin Bakoev<\/strong>
\n\u201dSt. Cyril and St. Methodius\u201d University of Veliko Tarnovo (Bulgaria)<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-1-mir<\/a><\/p>\n

Abstract.<\/strong> Here we consider a version of the Binary Reflected Gray Code (BRGC, or Graycode for short), called the mirror Gray code \u2013 in parallel and in comparison to the Gray code. We discuss some sources where the two codes are not distinguished and the reasons why…<\/p>\n

SEE MORE<\/a><\/p>\n

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Tasks from Online Competition \u201cVIVA Mathematics with \u0430 Computer\u201d: a Resource for Work in STEM Centers<\/h3>\n

Georgi Gachev, Petar Kenderov, Toni Chehlarova<\/strong>
\nInstitute of Mathematics and Informatics,<\/em>
\nBulgarian Academy of Sciences<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-2-the<\/a><\/p>\n

Abstract.<\/strong> It is shown how a well-known task, also used in the \u201eVIVA Math\u0435matics with Computer\u201c and \u201cTheme of the Month\u201d online competitions, can become a base for
\nregular classes and\/or explorations in school STEM centers...<\/p>\n

SEE MORE<\/a><\/p>\n

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The Construction of Valid and Reliable Test for the Divisibility Area<\/h3>\n

Daniela Zubovi\u0107, Dina Kamber Hamzi\u0107<\/strong>
\nFaculty of Science, University of Sarajevo (Bosnia and Hercegovina)<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-3-the<\/a><\/p>\n

Abstract.<\/strong> Understanding divisibility at the primary school level is a strong predictor of
\nstudents\u2019 mathematical achievements in secondary education…<\/p>\n

SEE MORE<\/a><\/p>\n

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Quality of Blended Learning Courses: Students\u2019 Perspective<\/h3>\n

Silvia Gaftandzhieva1), Rositsa Doneva1), Sadiq Hussain2),<\/strong>
\nAshis Talukder3,4), Gunadeep Chetia2), Nisha Gohain2)<\/strong>
\n1)University of Plovdiv \u201cPaisii Hilendarski\u201d \u2013 Plovdiv (Bulgaria)<\/em>
\n2)Dibrugarh University \u2013 Dibrugarh (India)<\/em>
\n3)Khulna University \u2013 Khulna (Bangladesh)<\/em>
\n4)Australian National University \u2013 Canberra (Australia)<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-4-qua<\/a><\/p>\n

Abstract.<\/strong> This research paper focuses on studying students’ perspectives on the quality of online course developed to support traditional face-to-face learning, specifically exploring their satisfaction levels….<\/p>\n

SEE MORE<\/a><\/p>\n

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Mistakes from the School Mathematics that Impact Students\u2019 Performance in Mathematics Competitions: an Example<\/h3>\n

Nadezhda Aplakova<\/strong>
\nSofia University<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-5-mis<\/a><\/p>\n

Abstract.<\/strong> The knowledge and skills a student needs in order to perform well on mathematics competitions are usually more and at a higher level compared to school mathematics...<\/p>\n

SEE MORE<\/a><\/p>\n

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Leontief Model with MS Excel Solver<\/h3>\n

Velika Kuneva1), Mariyan Milev2)<\/strong>
\n1)Agricultural University \u2013 Plovdiv, Bulgaria<\/em>
\n2) Sofia University \"St. Kliment Ohridski\"<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-6-leo<\/a><\/p>\n

Abstract.<\/strong> This article presents an applied solution of the Leontiev's balance model using MS Excel software...<\/p>\n

SEE MORE<\/a><\/p>\n

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Twenty-seventh Junior Balkan Mathematical Olympiad<\/h3>\n

Ivaylo Kortezov, Miroslav Marinov<\/strong>
\nInstitute of Mathematics and Informatics,<\/em>
\nBulgarian Academy of Sciences<\/em><\/p>\n

https:\/\/doi.org\/10.53656\/math2023-6-7-twe<\/a><\/p>\n

Abstract.<\/strong> \u0422he paper includes problems from the team selection tests for the national team for JBMO 2023, as well as model solutions and short comments on the performance of the contestants...<\/p>\n

SEE MORE<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Mirror (left-recursive) Gray Code Valentin Bakoev \u201dSt. Cyril and St. Methodius\u201d University of Veliko Tarnovo (Bulgaria) https:\/\/doi.org\/10.53656\/math2023-6-1-mir Abstract. Here we consider a version of the Binary Reflected Gray Code (BRGC, or Graycode for short), called the mirror Gray code \u2013 in parallel and in comparison to the Gray code. We discuss some sources where the […]<\/p>","protected":false},"author":124332423427287,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":{"source_name":"","source_url":"","via_name":"","via_url":"","override_template":"0","override":[{"template":"1","single_blog_custom":"","parallax":"1","fullscreen":"1","layout":"right-sidebar","sidebar":"default-sidebar","second_sidebar":"default-sidebar","sticky_sidebar":"1","share_position":"bottom","share_float_style":"share-monocrhome","show_share_counter":"1","show_view_counter":"1","show_featured":"0","show_post_meta":"1","show_post_author":"0","show_post_author_image":"1","show_post_date":"0","post_date_format":"default","post_date_format_custom":"Y\/m\/d","show_post_category":"1","show_post_reading_time":"1","post_reading_time_wpm":"300","show_zoom_button":"1","zoom_button_out_step":"2","zoom_button_in_step":"3","show_post_tag":"1","show_prev_next_post":"1","show_popup_post":"1","number_popup_post":"3","show_author_box":"0","show_post_related":"0","show_inline_post_related":"0"}],"override_image_size":"0","image_override":[{"single_post_thumbnail_size":"crop-500","single_post_gallery_size":"crop-500"}],"trending_post":"0","trending_post_position":"meta","trending_post_label":"Trending","sponsored_post":"0","sponsored_post_label":"Sponsored by","sponsored_post_name":"","sponsored_post_url":"","sponsored_post_logo_enable":"0","sponsored_post_logo":"","sponsored_post_desc":"","disable_ad":"0"},"jnews_primary_category":{"id":"","hide":""}},"categories":[4262],"tags":[],"yoast_head":"\n\u0421\u043f. \u201e\u041c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u043a\u0430 \u0438 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0442\u0438\u043a\u0430\u201c, \u043a\u043d\u0438\u0436\u043a\u0430 6\/2023, \u0433\u043e\u0434\u0438\u043d\u0430 LXVI - \u0410\u0437-\u0431\u0443\u043a\u0438<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathinfo.azbuki.bg\/matematics\/sadarzhanie-na-sp-matematika-i-informatika-2023-g\/sp-matematika-i-informatika-knizhka-6-2023-godina-lxvi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0421\u043f. \u201e\u041c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u043a\u0430 \u0438 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0442\u0438\u043a\u0430\u201c, \u043a\u043d\u0438\u0436\u043a\u0430 6\/2023, \u0433\u043e\u0434\u0438\u043d\u0430 LXVI - \u0410\u0437-\u0431\u0443\u043a\u0438\" \/>\n<meta property=\"og:description\" content=\"Mirror (left-recursive) Gray Code Valentin Bakoev \u201dSt. Cyril and St. Methodius\u201d University of Veliko Tarnovo (Bulgaria) https:\/\/doi.org\/10.53656\/math2023-6-1-mir Abstract. 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Here we consider a version of the Binary Reflected Gray Code (BRGC, or Graycode for short), called the mirror Gray code \u2013 in parallel and in comparison to the Gray code. 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