The Number Devil: A Mathematical Adventure

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Thuy-Anh Mai, Angie. "Personal Reflections on The Number Devil". Math Horizons. Mathematical Association of America . Retrieved 16 December 2011.

The Number Devil : A Mathematical Adventure - Google Books

Eisenbichler, Ernst. "Der "Fliegende Robert" der Literaten". Bayerischer Rundfunk (in German) . Retrieved 16 December 2011. a b Karacs, Imre (29 July 2000). "From long division to multiplication". The Independent. Archived from the original on 2022-06-18 . Retrieved 26 October 2011. An illustration by Rotraut Susanne Berner depicts the Number Devil showing a mathematical proof to Robert.is the sum of the first thirty-six natural numbers, which makes it a triangular number: [4] ∑ i = 1 36 i = 1 + 2 + 3 + ⋯ + 34 + 35 + 36 = 666 {\displaystyle \sum _{i=1} a b Deborah Loewenberg Ball and Hyman Bass (January 2000). "The Number Devil book review" (PDF). Notices of the AMS. 47 (1): 51–56 . Retrieved 3 September 2011. Enzensberger, Hans Magnus (1998). The Number Devil: A Mathematical Adventure. Translated by Michael Henry Heim. New York: Henry Holt & Company. ISBN 0-8050-5770-6.

The Number Devil: A Mathematical Adventure - AbeBooks The Number Devil: A Mathematical Adventure - AbeBooks

For Chinese gamers, 666 has an altogether different meaning. Liù, the pinyin for the Chinese word for six, is a homophone for the word for skilled. 6 or a string of 6’s can be used by Chinese gamers to show respect for an instance of highly skilled gameplay. The number 666 evokes strong feelings in many people. Some Christians, for instance, might go out of their way to avoid the number. Others may use the number to evoke an air of darkness or find amusement in coincidental appearances of the number in popular culture or everyday occurrences.

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Auclaire-Meier, Sebastien. " Der Zahlenteufel. Ein Hörspiel in neun Nächten für alle, die Angst vor der Mathematik haben" (in German). Archived from the original on 26 April 2012 . Retrieved 16 December 2011. For a time after the fourth night, Robert cannot find the Number Devil in his dreams; later, however, on the fifth night, Robert finds himself at a desert where the Number Devil teaches him about triangular numbers through the use of coconuts. On the sixth night, the Number Devil teaches Robert about the natural occurrence of Fibonacci numbers, which the Number Devil shortens to Bonacci numbers, by counting brown and white rabbits as they reproduce multiple times. By this dream, Robert's mother has noticed a visible change in Robert's mathematical interest, and Robert begins going to sleep earlier to encounter the Number Devil. The seventh night brings Robert to a bare, white room, where the Number Devil presents Pascal's triangle and the patterns that the triangular array displays. On the eighth night, Robert is brought to his classroom at school. The Number Devil arranges Robert's classmates in multiple ways, teaches him about permutations, and what the Number Devil calls vroom numbers ( factorials).