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Examples

  • Fibonacci's 1202 manuscript "Liber Abaci," the foundation of modern arithmetic, contains a number of magic tricks, including several versions of the famous three-object divination, wherein a spectator mentally selects one of three objects and the magician correctly identifies the spectator's choice.

    Pick a Card, Any Card Alex Stone 2011

  • Professional abacus operators felt threatened by the easier method, for one thing, and the timing of publication was not perfect: the Liber Abaci appeared during the period of crusades against Islam, with the clergy suspicious of anything with Arab connotations.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Professional abacus operators felt threatened by the easier method, for one thing, and the timing of publication was not perfect: the Liber Abaci appeared during the period of crusades against Islam, with the clergy suspicious of anything with Arab connotations.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Realizing that they were much better than Roman numerals, Fibonacci wrote a book about the decimal place value system called the Liber Abaci, published in 1202.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • More than any other book, the Liber Abaci introduced the Indian system to the West.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Realizing that they were much better than Roman numerals, Fibonacci wrote a book about the decimal place value system called the Liber Abaci, published in 1202.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Professional abacus operators felt threatened by the easier method, for one thing, and the timing of publication was not perfect: the Liber Abaci appeared during the period of crusades against Islam, with the clergy suspicious of anything with Arab connotations.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • More than any other book, the Liber Abaci introduced the Indian system to the West.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • More than any other book, the Liber Abaci introduced the Indian system to the West.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Realizing that they were much better than Roman numerals, Fibonacci wrote a book about the decimal place value system called the Liber Abaci, published in 1202.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

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