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  2. List of International Mathematical Olympiad participants

    en.wikipedia.org/wiki/List_of_International...

    Zhuo Qun Song, the most highly decorated IMO contestant with 5 golds and 1 bronze medal. Ciprian Manolescu, the only person to achieve three perfect scores at the IMO (1995–1997). The following table lists all IMO Winners who have won at least three gold medals, with corresponding years and non-gold medals received noted (P denotes a perfect ...

  3. International Mathematical Olympiad - Wikipedia

    en.wikipedia.org/wiki/International_Mathematical...

    The International Mathematical Olympiad (IMO) is a mathematical olympiad for pre-university students, and is the oldest of the International Science Olympiads. [1] It is widely regarded as the most prestigious mathematical competition in the world. The first IMO was held in Romania in 1959. It has since been held annually, except in 1980.

  4. List of International Mathematical Olympiads - Wikipedia

    en.wikipedia.org/wiki/List_of_International...

    [3] The first IMO was held in Romania in 1959. Seven countries entered – Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, Romania and the Soviet Union – with the hosts finishing as the top-ranked nation. [4] The number of participating countries has since risen: 14 countries took part in 1969, 50 in 1989, and 104 in 2009. [5]

  5. American Mathematics Competitions - Wikipedia

    en.wikipedia.org/wiki/American_Mathematics...

    The selection process takes place over the course of roughly five stages. At the last stage, the US selects six members to form the IMO team. There are three AMC competitions held each year: the AMC 8, for students under the age of 14.5 and in grades 8 and below [1] the AMC 10, for students under the age of 17.5 and in grades 10 and below

  6. Vieta jumping - Wikipedia

    en.wikipedia.org/wiki/Vieta_jumping

    Replace some a i by a variable x in the formulas, and obtain an equation for which a i is a solution. Using Vieta's formulas, show that this implies the existence of a smaller solution, hence a contradiction. Example. Problem #6 at IMO 1988: Let a and b be positive integers such that ab + 1 divides a 2 + b 2. Prove that ⁠ a 2 + b 2 / ab + 1 ...

  7. International Mathematical Olympiad selection process

    en.wikipedia.org/wiki/International_Mathematical...

    In Pakistan, selection for the IMO participants is quite similar to that in other countries. The process starts one and a half year before a particular IMO; and a test (also known as NMTC - National Mathematics Talent Contest) is taken by the high school students which is organized by the Higher Education Commission of Pakistan. The test is ...

  8. Chinese Mathematical Olympiad - Wikipedia

    en.wikipedia.org/wiki/Chinese_Mathematical_Olympiad

    Two papers are set, each with 3 problems. The examination is held on two consecutive mornings, and contestants have 4 hours and 30 minutes each day to work on the 3 problems. The Chinese Mathematical Olympiad is graded in 3-point increments, so that each problem is worth 21 points, making the total score 126, triple that of the IMO. [4]

  9. List of UN numbers 1901 to 2000 - Wikipedia

    en.wikipedia.org/wiki/List_of_UN_numbers_1901_to...

    n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s.entry [3]