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Wikipedia [note 3] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki -based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.
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Wikipedia, a free-content online encyclopedia written and maintained by a community of volunteers known as Wikipedians, began with its first edit on 15 January 2001, two days after the domain was registered. [2] It grew out of Nupedia, a more structured free encyclopedia, as a way to allow easier and faster drafting of articles and translations.
1.5 × 10 −157 is approximately equal to the probability that in a randomly selected group of 365 people, all of them will have different birthdays. 1 × 10 −101 is equal to the smallest non-zero value that can be represented by a single-precision IEEE decimal floating-point value. 10 −100 to 10 −30 1/52! chance of a specific shuffle
URL encoding, officially known as percent-encoding, is a method to encode arbitrary data in a uniform resource identifier (URI) using only the US-ASCII characters legal within a URI.
On scientific calculators, it is usually known as "SCI" display mode. In scientific notation, nonzero numbers are written in the form. or m times ten raised to the power of n, where n is an integer, and the coefficient m is a nonzero real number (usually between 1 and 10 in absolute value, and nearly always written as a terminating decimal ).
景行天皇27年（ユリウス暦 97年 11月5日） - 景行天皇が小碓皇子（後の日本武尊）に熊襲討伐を命じる; 文化元年（グレゴリオ暦 1804年 11月14日） - 華岡青洲が日本初の麻酔を使った手術に成功; 明治元年（グレゴリオ暦1868年 11月26日） - 明治天皇が江戸城に入る。
