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  2. Nim - Wikipedia

    en.wikipedia.org/wiki/Nim

    4: 5: 000 2 =0 10: You take 2 from C 1: 4: 3: 110 2 =6 10: I take 2 from B 1: 2: 3: 000 2 =0 10: You take 1 from C 1: 2: 2: 001 2 =1 10: I take 1 from A 0: 2: 2: 000 2 =0 10: You take 1 from C 0: 2: 1: 011 2 =3 10: The normal play strategy would be to take 1 from B, leaving an even number (2) heaps of size 1. For misère play, I take the entire ...

  3. Magic square - Wikipedia

    en.wikipedia.org/wiki/Magic_square

    This sum can also be found in the four outer numbers clockwise from the corners (3+8+14+9) and likewise the four counter-clockwise (the locations of four queens in the two solutions of the 4 queens puzzle [50]), the two sets of four symmetrical numbers (2+8+9+15 and 3+5+12+14), the sum of the middle two entries of the two outer columns and rows ...

  4. 4 3 2 1 (novel) - Wikipedia

    en.wikipedia.org/wiki/4_3_2_1_(novel)

    At the time of its publication in January and February 2017, the book received mixed reviews, and with widely divergent opinions. Novelist Tom Perrotta, reviewing for The New York Times, wrote: “4 3 2 1 is a work of outsize ambition and remarkable craft, a monumental assemblage of competing and complementary fictions, a novel that contains multitudes."

  5. 1/2 − 1/4 + 1/8 − 1/16 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/2_%E2%88%92_1/4_%2B_1/8...

    Demonstration that 1 / 2 − 1 / 4 + 1 / 8 − 1 / 16 + ⋯ = 1 / 3. In mathematics, the infinite series 1/2 − 1/4 + 1/8 − 1/16 + ⋯ is a simple example of an alternating series that converges absolutely. It is a geometric series whose first term is 1 / 2 and whose common ratio is − 1 / 2, so its sum is

  6. 1/2 + 1/4 + 1/8 + 1/16 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/2_%2B_1/4_%2B_1/8_%2B_1/...

    The track is 100 meters long. Achilles could run at 10 m/s, while the tortoise only 5. The tortoise, with a 10-meter advantage, Zeno argued, would win. Achilles would have to move 10 meters to catch up to the tortoise, but the tortoise would already have moved another five meters by then.

  7. Solve for X - Wikipedia

    en.wikipedia.org/wiki/Solve_for_X

    Solve for X was a community solution engagement project and think tank-like event launched by Google [1] to encourage collaboration, solve global issues and support innovators. The "X" in the title represents a remedy that someone or a team is already pursuing which ran from 2012 to 2014.

  8. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Ten-codes, especially "10-4" (meaning "understood") first reached public recognition in the mid- to late-1950s through the popular television series Highway Patrol, with Broderick Crawford. [ citation needed ] Crawford would reach into his patrol car to use the microphone to answer a call and precede his response with "10-4".

  9. Exponential function - Wikipedia

    en.wikipedia.org/wiki/Exponential_function

    Exponential functions with bases 2 and 1/2. The exponential function is a mathematical function denoted by () = ⁡ or (where the argument x is written as an exponent).Unless otherwise specified, the term generally refers to the positive-valued function of a real variable, although it can be extended to the complex numbers or generalized to other mathematical objects like matrices or Lie algebras.