{"id":41154,"date":"2016-10-28T10:34:12","date_gmt":"2016-10-28T07:34:12","guid":{"rendered":"https:\/\/new.azbuki.bg\/matematics\/matharticles\/5-lix-2016\/"},"modified":"2019-06-18T21:58:29","modified_gmt":"2019-06-18T18:58:29","slug":"5-lix-2016","status":"publish","type":"post","link":"https:\/\/bel.azbuki.bg\/en\/matematics\/matharticles\/5-lix-2016\/","title":{"rendered":"Mathematics and Informatics, Number 5\/2016, Volume 59"},"content":{"rendered":"<p><strong><a id=\"top\"><\/a>CONTENTS \/ \u0421\u042a\u0414\u042a\u0420\u0416\u0410\u041d\u0418\u0415<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>EDUCATIONAL MATTERS \/&nbsp;\u041d\u0410\u0423\u0427\u041d\u041e-\u041c\u0415\u0422\u041e\u0414\u0418\u0427\u0415\u0421\u041a\u0418 \u0421\u0422\u0410\u0422\u0418\u0418<\/strong><\/p>\n<p><a href=\"#art01\">\u0411\u0430\u0437\u0438\u0442\u0435 \u0434\u0430\u043d\u043d\u0438 \u043a\u0430\u0442\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430 \u043f\u043e-\u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435 \u043f\u043e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 <\/a><br \/><a href=\"#art01\">[Databases as Means for More Qualitative Training in Information Technologies] <\/a><br \/>\/ \u0412\u0435\u0441\u0435\u043b\u0438\u043d \u0414\u0437\u0438\u0432\u0435\u0432 \/&nbsp;Vesselin Dzivev<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_VesselinDzivev.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"#atr02\">\u0415xcel \u0432 \u043f\u043e\u043c\u043e\u0449 \u043f\u0440\u0438 \u0440\u0435\u0448\u0430\u0432\u0430\u043d\u0435 \u043d\u0430 \u043d\u044f\u043a\u043e\u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u043d\u0438 \u0443\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f <\/a><br \/><a href=\"#atr02\">[Using \u0415xcel for Solving Some Exponential Equations] <\/a><br \/>\/ \u0414\u0438\u0430\u043d\u0430 \u0421\u0442\u0435\u0444\u0430\u043d\u043e\u0432\u0430, \u041f\u043b\u0430\u043c\u0435\u043d \u041f\u0435\u043d\u0435\u0432 \/ Diana Stefanova, Plamen Penev<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_Stefanova_Penev.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"#art03\">An Improvement of the Gerretsen&rsquo;s Inequality for Non-obtuse Triangles <\/a><br \/>\/ &Scaron;efket Arslanagi\u0107<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_SefketArslanagic.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong>EDUCATIONAL TECHNOLOGIES \/&nbsp;\u041e\u0411\u0420\u0410\u0417\u041e\u0412\u0410\u0422\u0415\u041b\u041d\u0418 \u0422\u0415\u0425\u041d\u041e\u041b\u041e\u0413\u0418\u0418<\/strong><\/p>\n<p><a href=\"#atr08\">Three Inequalities for the Altitudes of a Triangle <\/a><br \/>\/ &Scaron;efket Arslanagi\u0107<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_SefketArslanagic_1.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"#art04\">Computer Discovered Mathematics: Orthology Centers of the Euler Triangles <\/a><br \/>\/ Sava Grozdev, Deko Dekov<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_Grozdev_Dekov.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"#art05\">Forecasting of Time-Series for Financial Markets <\/a><br \/>\/ Reinhard Magenreuter<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_ReinhardMagenreuter.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"#art06\">Neural Networks <\/a><br \/>\/ Reinhard Magenreuter<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_ReinhardMagenreuter_1.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"#art07\">\u0410\u043a\u0430\u0434\u0435\u043c\u0438\u0447\u043d\u0430\u0442\u0430 \u043b\u0435\u043a\u0446\u0438\u044f &ndash; \u0442\u0440\u0430\u0434\u0438\u0446\u0438\u043e\u043d\u043d\u0430 \u0444\u043e\u0440\u043c\u0430 \u043d\u0430 \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435 \u0432\u044a\u0432 \u0432\u0443\u0437 \u0441 \u0432\u044a\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0437\u0430 \u0438\u043d\u043e\u0432\u0430\u0446\u0438\u043e\u043d\u043d\u043e \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043d\u0430 \u043f\u043e\u0437\u043d\u0430\u0432\u0430\u0442\u0435\u043b\u043d\u0438\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b <\/a><br \/><a href=\"#art07\">[The Academic Lecture &ndash; a Traditional Form of Instruction in Higher Education with Possibilities for Innovative Development of Learning Potential] <\/a><br \/>\/ \u0415\u043b\u0435\u043d\u0430 \u0420\u0430\u0434\u043e\u0432\u0430\u043d\u043e\u0432\u0430 \/&nbsp; Elena Radovanova<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_ElenaRadovanova.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong>CONTEST PROBLEMS \/ \u041a\u041e\u041d\u041a\u0423\u0420\u0421\u041d\u0418 \u0417\u0410\u0414\u0410\u0427\u0418<\/strong><\/p>\n<p>\u041a\u043e\u043d\u043a\u0443\u0440\u0441\u043d\u0438 \u0437\u0430\u0434\u0430\u0447\u0438&nbsp; \u043d\u0430 \u0431\u0440\u043e\u044f <br \/>[Contest Problems of this Issue]<\/p>\n<p>\u0420\u0435\u0448\u0435\u043d\u0438\u044f \u043d\u0430 \u0437\u0430\u0434\u0430\u0447\u0438\u0442\u0435 \u043e\u0442 \u0431\u0440\u043e\u0439 6, 2015&nbsp;<br \/>[Solutions of the Contest Problems from Issue 6, 2015]<br \/><a href=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/11\/azbuki.bg_dmdocuments_Matematika05_16_KonkursNenkov.pdf\" class=\"doclink\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-38022\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2012\/08\/components_com_docman_themes_default_images_icons_16x16_pdf.png\" alt=\"icon\" border=\"0\" width=\"16\" height=\"16\" \/>&nbsp;Open the full text<\/a><\/p>\n<p>&nbsp;&nbsp;<\/p>\n<p><strong>READ IN THE LATEST ISSUES OF &bdquo;AZBUKI&ldquo; JOURNALS <\/strong><br \/><strong>\/ \u0412 \u041d\u041e\u0412\u0418\u0422\u0415 \u0411\u0420\u041e\u0415\u0412\u0415 \u041d\u0410 \u0421\u041f\u0418\u0421\u0410\u041d\u0418\u042f\u0422\u0410 \u041d\u0410 \u0418\u0417\u0414\u0410\u0422\u0415\u041b\u0421\u0422\u0412\u041e &bdquo;\u0410\u0417\u0411\u0423\u041a\u0418&ldquo; \u0427\u0415\u0422\u0415\u0422\u0415<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>GUIDE FOR AUTHORS \/ \u0423\u041a\u0410\u0417\u0410\u041d\u0418\u042f \u0417\u0410 \u0410\u0412\u0422\u041e\u0420\u0418\u0422\u0415<\/strong><\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"art01\"><\/a>\u0411\u0410\u0417\u0418\u0422\u0415 \u0414\u0410\u041d\u041d\u0418 \u041a\u0410\u0422\u041e \u0421\u0420\u0415\u0414\u0421\u0422\u0412\u041e&nbsp;\u0417\u0410 \u041f\u041e-\u041a\u0410\u0427\u0415\u0421\u0422\u0412\u0415\u041d\u041e \u041e\u0411\u0423\u0427\u0415\u041d\u0418\u0415&nbsp;\u041f\u041e \u0418\u041d\u0424\u041e\u0420\u041c\u0410\u0426\u0418\u041e\u041d\u041d\u0418 \u0422\u0415\u0425\u041d\u041e\u041b\u041e\u0413\u0418\u0418<\/strong><\/p>\n<p>\u0412\u0435\u0441\u0435\u043b\u0438\u043d \u0414\u0437\u0438\u0432\u0435\u0432<br \/>\u0421\u043e\u0444\u0438\u0439\u0441\u043a\u0438 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442 &bdquo;\u0421\u0432. \u041a\u043b\u0438\u043c\u0435\u043d\u0442 \u041e\u0445\u0440\u0438\u0434\u0441\u043a\u0438&ldquo;<\/p>\n<p>\u0420\u0435\u0437\u044e\u043c\u0435. \u0412 \u0441\u0442\u0430\u0442\u0438\u044f\u0442\u0430 \u0441\u0435 \u043e\u043f\u0438\u0441\u0432\u0430\u0442 \u043d\u043e\u0432\u0438 \u0432\u044a\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0437\u0430 \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435\u0442\u043e \u043f\u043e &bdquo;\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438&ldquo; \u0441 \u043f\u0440\u0435\u043e\u0431\u043b\u0430\u0434\u0430\u0432\u0430\u0449\u043e \u0438\u0437\u0443\u0447\u0430\u0432\u0430\u043d\u0435 \u043d\u0430 \u0431\u0430\u0437\u0438 \u043e\u0442 \u0434\u0430\u043d\u043d\u0438. \u041f\u0440\u0438 \u043f\u0440\u0438\u043b\u0430\u0433\u0430\u043d\u0435\u0442\u043e \u043d\u0430 \u0442\u043e\u0437\u0438 \u0432\u0438\u0434 \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435 \u0441\u0435 \u0430\u043a\u0446\u0435\u043d\u0442\u0438\u0440\u0430 \u0432\u044a\u0440\u0445\u0443 \u043e\u0441\u043c\u0438\u0441\u043b\u044f\u043d\u0435\u0442\u043e \u043d\u0430 \u0434\u0430\u043d\u043d\u0438\u0442\u0435, \u0442\u044f\u0445\u043d\u043e\u0442\u043e \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u0443\u0432\u0430\u043d\u0435 \u0432 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u0438 \u0437\u043d\u0430\u043d\u0438\u044f. \u041e\u043f\u0438\u0441\u0430\u043d\u0438 \u0441\u0430 \u043e\u0441\u043e\u0431\u0435\u043d\u043e\u0441\u0442\u0438\u0442\u0435 \u0432 \u043c\u0435\u0442\u043e\u0434\u0438\u043a\u0430\u0442\u0430 \u043f\u0440\u0438 \u043f\u0440\u0438\u043b\u0430\u0433\u0430\u043d\u0435\u0442\u043e \u043d\u0430 \u0442\u043e\u0437\u0438 \u043f\u043e\u0434\u0445\u043e\u0434 \u0432 \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435\u0442\u043e.<br \/>Keywords: computer systems and technologies, databases, secondary education, methodology of teaching, electronic education<\/p>\n<p>&nbsp;<\/p>\n<p><strong>DATABASES AS MEANS FOR MORE QUALITATIVE&nbsp;TRAINING IN INFORMATION TECHNOLOGIES<\/strong><\/p>\n<p>Abstract. The article describes new opportunities for training in &ldquo;Information Technologies&rdquo; predominantly studying databases. In applying this type of training it focuses on understanding the data, the transformation into information and knowledge. The peculiarities of the methodology are described&nbsp; in applying this approach to training.<\/p>\n<p>Mr. Vesselin Dzivev, PhD student<br \/>Faculty of Mathematics and Informatics<br \/>Sofia University<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"atr02\"><\/a>\u0415XCEL \u0412 \u041f\u041e\u041c\u041e\u0429 \u041f\u0420\u0418 \u0420\u0415\u0428\u0410\u0412\u0410\u041d\u0415 \u041d\u0410 \u041d\u042f\u041a\u041e\u0418 \u041f\u041e\u041a\u0410\u0417\u0410\u0422\u0415\u041b\u041d\u0418 \u0423\u0420\u0410\u0412\u041d\u0415\u041d\u0418\u042f<\/strong><\/p>\n<p>\u0414\u0438\u0430\u043d\u0430 \u0421\u0442\u0435\u0444\u0430\u043d\u043e\u0432\u0430, \u041f\u043b\u0430\u043c\u0435\u043d \u041f\u0435\u043d\u0435\u0432<\/p>\n<p>\u0420\u0435\u0437\u044e\u043c\u0435. \u0421\u0442\u0430\u0442\u0438\u044f\u0442\u0430 \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430 \u0432\u043a\u043b\u044e\u0447\u0432\u0430\u043d\u0435 \u043d\u0430 \u0432\u044a\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043d\u0430 \u0435\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u043d\u0430\u0442\u0430 \u0441\u0440\u0435\u0434\u0430 \u043d\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u0430\u0442\u0430 Excel \u0437\u0430 \u0440\u0430\u0437\u043d\u043e\u043e\u0431\u0440\u0430\u0437\u044f\u0432\u0430\u043d\u0435 \u0440\u0435\u0448\u0430\u0432\u0430\u043d\u0435\u0442\u043e \u043d\u0430 \u043d\u044f\u043a\u043e\u0438 \u0433\u0440\u0443\u043f\u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u043d\u0438 \u0443\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f \u043e\u0442 \u0443\u0447\u0435\u043d\u0438\u0446\u0438 \u0432 \u0441\u0440\u0435\u0434\u043d\u043e\u0442\u043e \u0443\u0447\u0438\u043b\u0438\u0449\u0435<br \/>Keywords: problem solving, indicative equation, number, table, macros<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0415XCEL HELPS IN SOLVING&nbsp;SOME EXPONENTIAL EQUATIONS<\/strong><\/p>\n<p>Abstract. The paper proposes to include possibilities of the experimental environment of the program Excel in varying the problem solving of some groups exponential equations by secondary students.<\/p>\n<p>Dr. Diana Stefanova<br \/>Teacher in Mathematics<\/p>\n<p>Mr. Plamen Penev<br \/>Teacher in Informatics<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"art03\"><\/a>AN IMPROVEMENT OF THE GERRETSEN&rsquo;S INEQUALITY FOR NON-OBTUSE TRIANGLES<\/strong><\/p>\n<p>&Scaron;efket Arslanagi\u0107<br \/>University of Sarajevo<\/p>\n<p>Abstract. The inequality <img decoding=\"async\" loading=\"lazy\" width=\"118\" height=\"21\" class=\"size-full wp-image-41149 size-full wp-image-41150\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/10\/images_math05-16-art01-1.jpg\" alt=\"\" \/>&nbsp;is proved in the paper as a generalization of the Gerretsen&rsquo;s inequality&nbsp;<img decoding=\"async\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/10\/images_math05-16-art01-2.jpg\" alt=\"\" \/> for non-obtuse triangles.<br width=\"118\" height=\"21\" \/>Keywords:&nbsp; non-obtuse triangle, inequality, g\u0435neralization<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"atr08\"><\/a>THREE INEQUALITIES&nbsp;FOR THE ALTITUDES OF A TRIANGLE<\/strong><\/p>\n<p>&Scaron;efket Arslanagi\u0107<br \/>University of Sarajevo<\/p>\n<p>Abstract. The following three inequalities are considered in the paper&nbsp;<img decoding=\"async\" loading=\"lazy\" width=\"114\" height=\"21\" class=\"size-full wp-image-41151 size-full wp-image-41152 size-full wp-image-41153\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/10\/images_math05-16-art02-1.jpg\" alt=\"\" \/>,&nbsp;<img decoding=\"async\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/10\/images_math05-16-art02-2.jpg\" alt=\"\" \/> ,&nbsp;<img decoding=\"async\" src=\"https:\/\/azbuki.bg\/wp-content\/uploads\/2016\/10\/images_math05-16-art02-3.jpg\" alt=\"\" \/>&nbsp;Arrangements of inequalities are considered too.<br width=\"114\" height=\"21\" \/>Keywords: triangle, altitude, inequality, generalization, arrangement<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"art04\"><\/a>COMPUTER DISCOVERED MATHEMATICS:&nbsp;ORTHOLOGY CENTERS OF THE EULER TRIANGLES<\/strong><\/p>\n<p>Sava Grozdev, Deko Dekov<br \/>University of Finance, Business and Entrepreneurship<\/p>\n<p>Abstract. The paper studies the orthologic triangles of the Euler triangles and their orthology centers. The results are discovered by the computer program &ldquo;Discoverer&rdquo;.<br \/>Keywords: Euler triangles, orthologic triangles, orthology center, computer-generated mathematics, Discoverer.<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"art05\"><\/a>FORECASTING OF TIME-SERIES FOR FINANCIAL MARKETS<\/strong><\/p>\n<p>Reinhard Magenreuter<br \/>University of Finance, Business and Entrepreneurship<\/p>\n<p>Abstract. One of the four backbones to analyze time-series in general and forecast time-series for financial markets, particularly, is the Chaos-Theory. The four backbones are: Chaos-theory, Fuzzy logic, Neural networks and Genetic algorithms. Although each method itself is a powerful analytic tool, the present paper suggests to combine them to a hybrid analytic and analysis tool, where all methods interact and result in promising outcomes.<br \/>Keywords: market, chaos, synergetics, forecasting<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"art06\"><\/a>NEURAL NETWORKS<\/strong><\/p>\n<p>Reinhard Magenreuter<br \/>University of Finance, Business and Entrepreneurship&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<\/p>\n<p>Abstract. There are four backbones to analyze time-series in general and forecast time-series for financial markets: Chaos-theory, Fuzzy logic, Neural networks and Genetic algorithms. The first one is considered in (Magenreuter, 2016), while the present paper is dedicated to the third backbone including an example with promising outcomes in financial markts.<br \/>Keywords: perceptron, sigmoid, neural network, financial market, time-series, forecasting<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>\n<hr \/>\n<p><strong><a id=\"art07\"><\/a>\u0410\u041a\u0410\u0414\u0415\u041c\u0418\u0427\u041d\u0410\u0422\u0410 \u041b\u0415\u041a\u0426\u0418\u042f &ndash; \u0422\u0420\u0410\u0414\u0418\u0426\u0418\u041e\u041d\u041d\u0410 \u0424\u041e\u0420\u041c\u0410&nbsp;\u041d\u0410 \u041e\u0411\u0423\u0427\u0415\u041d\u0418\u0415 \u0412\u042a\u0412 \u0412\u0423\u0417 \u0421 \u0412\u042a\u0417\u041c\u041e\u0416\u041d\u041e\u0421\u0422\u0418&nbsp;\u0417\u0410 \u0418\u041d\u041e\u0412\u0410\u0426\u0418\u041e\u041d\u041d\u041e \u0420\u0410\u0417\u0412\u0418\u0422\u0418\u0415&nbsp;\u041d\u0410 \u041f\u041e\u0417\u041d\u0410\u0412\u0410\u0422\u0415\u041b\u041d\u0418\u042f \u041f\u041e\u0422\u0415\u041d\u0426\u0418\u0410\u041b<\/strong><\/p>\n<p>\u0415\u043b\u0435\u043d\u0430 \u0420\u0430\u0434\u043e\u0432\u0430\u043d\u043e\u0432\u0430<br \/>\u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442 &ndash; \u0421\u043e\u0444\u0438\u044f<\/p>\n<p>\u0420\u0435\u0437\u044e\u043c\u0435. \u0412 \u0441\u0442\u0430\u0442\u0438\u044f\u0442\u0430 \u0440\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u043d\u043e \u0441\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0438\u0440\u0430 \u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u0430 \u043f\u043e\u0437\u043d\u0430\u043d\u0438\u0435, \u043a\u043e\u0435\u0442\u043e \u0430\u0434\u0430\u043f\u0442\u0438\u0432\u043d\u043e \u043a\u043e\u0440\u0435\u043b\u0438\u0440\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0432\u0430\u0449\u0430\u0442\u0430 \u0438 \u0441\u0430\u043c\u043e\u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0432\u0430\u0449\u0430\u0442\u0430 \u0434\u0435\u0439\u043d\u043e\u0441\u0442 \u043d\u0430 \u043e\u0431\u0443\u0447\u0430\u0432\u0430\u043d\u0438\u044f. \u0421\u044a\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0438\u0442\u0435 \u0438\u0437\u0438\u0441\u043a\u0432\u0430\u043d\u0438\u044f \u0437\u0430 \u0438\u043d\u0442\u0435\u043d\u0437\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u0432 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0442\u043e \u043d\u0430\u043b\u0430\u0433\u0430\u0442 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u043d\u043e \u0434\u0430 \u0441\u0435 \u0440\u0430\u0437\u0432\u0438\u0432\u0430 \u043f\u043e\u0437\u043d\u0430\u0432\u0430\u0442\u0435\u043b\u043d\u0438\u044f\u0442 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b. \u0412 \u0443\u043d\u0438\u0441\u043e\u043d \u0441 \u0442\u0435\u0437\u0438 \u0438\u0437\u0438\u0441\u043a\u0432\u0430\u043d\u0438\u044f \u0441\u0435 \u043f\u043e\u044f\u0432\u044f\u0432\u0430 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442 \u043e\u0442 \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u043d\u0435 \u043d\u0430 \u0432\u044a\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0437\u0430 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043d\u0430 \u043b\u0435\u043a\u0446\u0438\u044f\u0442\u0430 \u043a\u0430\u0442\u043e \u043e\u0441\u043d\u043e\u0432\u043d\u0430 \u0444\u043e\u0440\u043c\u0430 \u043d\u0430 \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435 \u0432 \u0433\u0440\u0430\u043d\u0438\u0446\u0438\u0442\u0435 \u043d\u0430 \u0432\u0438\u0441\u0448\u0435\u0442\u043e \u0443\u0447\u0438\u043b\u0438\u0449\u0435.<br \/>Keywords: education, lecture, learning, innovation system<\/p>\n<p>&nbsp;<\/p>\n<p><strong>THE ACADEMIC LECTURE &ndash; A TRADITIONAL FORM&nbsp;OF INSTRUCTION IN HIGHER EDUCATION WITH POSSIBILITIES FOR INNOVATIVE DEVELOPMENT&nbsp;OF LEARNING POTENTIAL<\/strong><\/p>\n<p>Abstract. The article structures and systematizes&nbsp;knowledge rationally, which adaptively correlates the managing and self-managing activity of learners. The contemporary requirements for intensification today impose developing learning potential to the highest degree. In line with these requirements, there is a need to offer possibilities for developing the lecture as a basic form of instruction within the University.<\/p>\n<p>Ms. Elena Radovanova, Assist. Prof.<br \/>Faculty of Mathematics and Informatics<br \/>Technical University<\/p>\n<p style=\"text-align: right;\"><a href=\"#top\">\u043d\u0430\u0433\u043e\u0440\u0435<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>CONTENTS \/ \u0421\u042a\u0414\u042a\u0420\u0416\u0410\u041d\u0418\u0415 &nbsp; EDUCATIONAL MATTERS \/&nbsp;\u041d\u0410\u0423\u0427\u041d\u041e-\u041c\u0415\u0422\u041e\u0414\u0418\u0427\u0415\u0421\u041a\u0418 \u0421\u0422\u0410\u0422\u0418\u0418 \u0411\u0430\u0437\u0438\u0442\u0435 \u0434\u0430\u043d\u043d\u0438 \u043a\u0430\u0442\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430 \u043f\u043e-\u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435 \u043f\u043e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 [Databases as Means for More Qualitative Training in Information Technologies] \/ \u0412\u0435\u0441\u0435\u043b\u0438\u043d \u0414\u0437\u0438\u0432\u0435\u0432 \/&nbsp;Vesselin Dzivev&nbsp;\u041e\u0442\u0432\u043e\u0440\u0438 \u043f\u044a\u043b\u043d\u0438\u044f \u0442\u0435\u043a\u0441\u0442 &nbsp; \u0415xcel \u0432 \u043f\u043e\u043c\u043e\u0449 \u043f\u0440\u0438 \u0440\u0435\u0448\u0430\u0432\u0430\u043d\u0435 \u043d\u0430 \u043d\u044f\u043a\u043e\u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u043d\u0438 \u0443\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f [Using \u0415xcel for Solving Some Exponential Equations] \/ \u0414\u0438\u0430\u043d\u0430 \u0421\u0442\u0435\u0444\u0430\u043d\u043e\u0432\u0430, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[]},"categories":[2882],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - 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