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• 0 (number) - Wikipedia, the free encyclopedia

  0 (zero) is both a number and the numerical digit used to represent that number in numerals. It plays a central role in mathematics as the additive identity ...

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• Zero -- from Wolfram MathWorld

  Because the number of permutations of 0 elements is 1, 0! (zero factorial) is defined as 1 (Wells 1986, p. 31). This definition is useful in expressing many ...

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• Math Forum: Ask Dr. Math FAQ: Zero to Zero Power

  The Math Forum Donate to the Math Forum. Ask Dr. Math: FAQ. 0^0 (zero to zero power). Dr. Math FAQ || Classic Problems || Formulas || Search Dr. Math || Dr. ...

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