Mathematical Education: Latest issue http://www.mathnet.ru/eng/mo 2026, Issue Issue 2(118) en-gb Copyright 2026, Sat, 25 Jul 2026 00:00:00 +0300 math-net2026_09@mi-ras.ru tche@mi-ras.ru Mathematical Education http://www.mathnet.ru/JrnLogos/mo/mo1.jpg http://www.mathnet.ru/eng/mo About a quadrilateral, which has more than four dozen formulas in its arsenal, but is presented in a textbook by one I. G. Malyshev Math. Ed., 2026:2(118), 2--12 http://mi.mathnet.ru/eng/mo941 Sun, 26 Jul 2026 00:00:00 +0300 Thu, 23 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo941 Calculating probabilistic times for reaching a set of states in a finite Markov chain K. Yu. Gorbunov Math. Ed., 2026:2(118), 13--18 http://mi.mathnet.ru/eng/mo942 Sun, 26 Jul 2026 00:00:00 +0300 Thu, 23 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo942 On the difference between the characteristic and minimal polynomials of a matrix N. V. Ilyushechkin Math. Ed., 2026:2(118), 19--23 http://mi.mathnet.ru/eng/mo943 Sun, 26 Jul 2026 00:00:00 +0300 Thu, 23 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo943 An analogue of Jensen inequality for p-convex functions and its application to solving equations S. I. Kalinin, L. V. Pankratova Math. Ed., 2026:2(118), 24--29 http://mi.mathnet.ru/eng/mo944 Sun, 26 Jul 2026 00:00:00 +0300 Thu, 23 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo944 On baron Munchausen's problem. Leonhard Euler. Part 2, finished V. N. Onikiychuk, I. V. Onikiychuk Math. Ed., 2026:2(118), 30--40 http://mi.mathnet.ru/eng/mo945 Sun, 26 Jul 2026 00:00:00 +0300 Fri, 24 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo945 Numbers from natural to octaves V. A. Serdukov, A. V. Serdukova Math. Ed., 2026:2(118), 41--51 http://mi.mathnet.ru/eng/mo946 Sun, 26 Jul 2026 00:00:00 +0300 Fri, 24 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo946 School Olympiad TIIM --- “Technologies. Intellect. Informatics. Mathematics” --- 2025/2026 A. A. Andreev, A. A. Balabekyan, A. V. Kuprin, E. A. Maksimova, E. A. Skorodumova Math. Ed., 2026:2(118), 52--67 http://mi.mathnet.ru/eng/mo947 Sun, 26 Jul 2026 00:00:00 +0300 Sat, 25 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/mo947