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  2. Fibonacci sequence - Wikipedia

    en.wikipedia.org/wiki/Fibonacci_sequence

    In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn . Many writers begin the sequence with 0 and 1, although some authors start it from 1 and 1 [1][2] and some (as did Fibonacci) from 1 ...

  3. List of countries with the most skyscrapers - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_with_the...

    6 0 Pyongyang: 31 Poland: 13 5 1 Warsaw: 31 Spain: 13 4 0 Madrid: 31 Sri Lanka: 13 3 0 Colombo: 34 Argentina: 11 1 0 Buenos Aires: 35 Kazakhstan: 9 1 1 Astana: 36 Azerbaijan: 8 1 0 Baku: 36 Italy: 8 3 0 Milan: 36 Netherlands: 8 1 0 Rotterdam: 39 Cambodia: 6 4 0 Phnom Penh: 39 South Africa: 6 2 0 Johannesburg: 41 Venezuela: 5 3 0 Caracas: 42 ...

  4. 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 - Wikipedia

    en.wikipedia.org/wiki/10,_9,_8,_7,_6,_5,_4,_3,_2,_1

    Released: 1983. 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 is the fourth studio album by Midnight Oil, released in 1982 by Columbia Records. It hit number 3 on the Australian Kent Music Report Albums Chart during 171 total weeks. [1] The band's first US release, it peaked at number 178 on the Billboard 200. At the Countdown Music Awards, it was nominated ...

  5. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [1]

  6. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Zone 1 uses an integrated numbering plan; four digits (1xxx) determine the area served in Canada, the United States and its territories, and much of the Caribbean. Zone 2 uses two 2-digit codes (20, 27) and eight sets of 3-digit codes (21x–26x, 28x, 29x), mostly to serve Africa , but also Aruba , Faroe Islands , Greenland and British Indian ...

  7. Exact trigonometric values - Wikipedia

    en.wikipedia.org/wiki/Exact_trigonometric_values

    The trigonometric functions of angles that are multiples of 15°, 18°, or 22.5° have simple algebraic values. These values are listed in the following table for angles from 0° to 45°. [ 1 ] In the table below, the label "Undefined" represents a ratio 1 : 0. {\displaystyle 1:0.}

  8. 6-3-5 Brainwriting - Wikipedia

    en.wikipedia.org/wiki/6-3-5_Brainwriting

    6-3-5 Brainwriting is a particular form of brainstorming through the medium of graphics; [3] in particular, it is classified under the intuitive and progressive methodologies as it involves driving inspiration from other members in a cyclical way. [4] The grounding of such technique is the belief that the success of an idea generation process ...

  9. Particular values of the gamma function - Wikipedia

    en.wikipedia.org/wiki/Particular_values_of_the...

    It is unknown whether these constants are transcendental in general, but Γ(⁠ 1 / 3 ⁠) and Γ(⁠ 1 / 4 ⁠) were shown to be transcendental by G. V. Chudnovsky. Γ(⁠ 1 / 4 ⁠) / 4 √ π has also long been known to be transcendental, and Yuri Nesterenko proved in 1996 that Γ(⁠ 1 / 4 ⁠), π, and e π are algebraically independent.