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  2. The Nine Chapters on the Mathematical Art - Wikipedia

    en.wikipedia.org/wiki/The_Nine_Chapters_on_the...

    ISBN 978-93-80250-06-9. MR 2648497. Needham, Joseph (1986). Science and Civilization in China: Volume 3, Mathematics and the Sciences of the Heavens and the Earth. Taipei: Caves Books, Ltd. Siu, Man-Keung (December 1993). "Proof and pedagogy in ancient China: Examples from Liu Hui's commentary on JIU ZHANG SUAN SHU". Educational Studies in ...

  3. 1 + 2 + 3 + 4 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    One can then prove that this smoothed sum is asymptotic to ⁠− + 1 / 12 ⁠ + CN 2, where C is a constant that depends on f. The constant term of the asymptotic expansion does not depend on f: it is necessarily the same value given by analytic continuation, ⁠− + 1 / 12 ⁠. [1]

  4. Abraham and Lot's conflict - Wikipedia

    en.wikipedia.org/wiki/Abraham_and_Lot's_conflict

    Abraham and Lot's conflict (Hebrew: מריבת רועי אברהם ורועי לוט, Merivat Roey Avraham Ve'Roey Lot) is an event in the Book of Genesis, in the weekly Torah portion, Lech-Lecha, that depicts the separation of Abraham and Lot, as a result of a fight among their shepherds.

  5. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Tuesday ...

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    January 21, 2025 at 12:45 AM. Move over, Wordle, Connections and Mini Crossword—there's a new NYT word game in town! The New York Times' recent game, "Strands," is becoming more and more popular ...

  6. Today's Wordle Hint, Answer for #1331 on Sunday, February 9, 2025

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    February 9, 2025 at 12:04 AM If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1331 ahead. Let's start with a few hints.

  7. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    Natural numbers are normally used, but some allow simple fractional components (e.g. 1 ⁄ 2, 1 ⁄ 4, and 112 in Roman abacus), and a decimal point can be imagined for fixed-point arithmetic. Any particular abacus design supports multiple methods to perform calculations, including addition , subtraction , multiplication , division , and ...

  8. Chess problem - Wikipedia

    en.wikipedia.org/wiki/Chess_problem

    A chess problem, also called a chess composition, is a puzzle created by the composer using chess pieces on a chessboard, which presents the solver with a particular task.. For instance, a position may be given with the instruction that White is to move first, and checkmate Black in two moves against any possible defen

  9. Occam's razor - Wikipedia

    en.wikipedia.org/wiki/Occam's_razor

    In philosophy, Occam's razor (also spelled Ockham's razor or Ocham's razor; Latin: novacula Occami) is the problem-solving principle that recommends searching for explanations constructed with the smallest possible set of elements.