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Обсуждение задачи 2016. Магия и наукаShen Yang seems there is illegal tests [1] // Задача 2016. Магия и наука 3 апр 2017 20:25 1 1 366 -565864 609690 15155 516588 775970 765044 814205 -251004 532061 magion will stop in the middle of second args...please check it Shen Yang Re: seems there is illegal tests // Задача 2016. Магия и наука 4 апр 2017 14:14 sorry ,it's my mistake,answer should be 8587308.19597172360000000000 ilya trofimov test 4 [1] // Задача 2016. Магия и наука 17 окт 2014 18:04 Precision????? or something special??? Al.Cash Re: test 4 // Задача 2016. Магия и наука 3 янв 2015 23:32 Same question here. Any hints? Edit: just a bug with initial speed vector. Edited by author 04.01.2015 06:34 kvap the problem description is missing something [3] // Задача 2016. Магия и наука 12 окт 2014 03:07 There is no way to tell, which direction the particle will move at the start, since it has no initial speed. So there is an infinite set of circles it can follow around the first mana bundle. Edited by author 12.10.2014 03:08 Kurpilyansky Eugene (USU) Re: the problem description is missing something [2] // Задача 2016. Магия и наука 12 окт 2014 15:24 You are wrong. At the start moment the particle has zero speed, but has non-zero acceleration, which is determine initial movement direction. kvap Re: the problem description is missing something [1] // Задача 2016. Магия и наука 13 окт 2014 08:53 Then the description should explicitly state that the force of interaction of the magion with a mana bundle is always directed towards or away from the center of the bundle. Sandro (USU) Re: the problem description is missing something // Задача 2016. Магия и наука 17 окт 2014 14:57 Now the problem statement says that magion at the initial moment moves up. mib problem example seems not correct [1] // Задача 2016. Магия и наука 15 окт 2014 03:39 Why magion during moving from point (4,0,2) to point (20,16,2) not increased z-coordinate? Why aura force "(0,0,a)" not lift up the magion? Same question about moving from point (20,16,2) to point (20,16,2). Sandro (USU) Re: problem example seems not correct // Задача 2016. Магия и наука 17 окт 2014 14:17 "Affected by the second bundle, the magion continues its movement along the circle omega_2 with the center at the point O_2 and with the point M_2 on it." In the sample this circle is horizontal. The bundle of mana doesn't let the aura lift the magion. Teacher30 (Burunduk1) Negative z. [1] // Задача 2016. Магия и наука 11 окт 2014 17:36 What should I do, if some point O[i] has negative z-coordinate? Edited by author 11.10.2014 17:37 Kurpilyansky Eugene (USU) Re: Negative z. // Задача 2016. Магия и наука 12 окт 2014 17:41 O[i] is one of given centers, isn't it? Nothing special. See the sample from statement. :)
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