翻訳と辞書 Words near each other ・ 8.8 cm SK C/30 naval gun ・ 8.8 cm SK C/31 naval gun ・ 8.8 cm SK C/32 naval gun ・ 8.8 cm SK C/35 naval gun ・ 8.8 cm SK L/30 naval gun ・ 8.8 cm SK L/35 naval gun ・ 8.8 cm SK L/45 naval gun ・ 8/12/00 – Tampa, Florida ・ 8/21/00 – Columbus, Ohio ・ 8/24/00 – Jones Beach, New York ・ 8/25/00 – Jones Beach, New York ・ 8/29/00 – Boston, Massachusetts ・ 8/7/00 – Atlanta, Georgia ・ 80 ・ 80 (disambiguation) ・ 80 (number) ・ 80 (Tolis Voskopoulos album) ・ 80 Air Navigation School SAAF ・ 80 BC ・ 80 Blocks from Tiffany's ・ 80 Cancri ・ 80 Coleman Street ・ 80 Days ・ 80 Days (2014 video game) ・ 80 Degrees East of Birdland ・ 80 Fetter Lane ・ 80 in the Shade ・ 80 metres hurdles ・ 80 Micro ・ 80 Million Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 80 (number) ： ウィキペディア英語版 80 (number) 80 (eighty) is the natural number following 79 and preceding 81. == In mathematics == The sum of Euler's totient function φ(''x'') over the first sixteen integers is 80. Adding up some subsets of its divisors (e.g., 1, 4, 5, 10, 20 and 40) gives 80, hence 80 is a semiperfect number. 80 is a ménage number, and is a Harshad number in base 10. The Pareto principle (also known as the 80-20 rule) states that, for many events, roughly 80% of the effects come from 20% of the causes.〔.〕〔.〕 Every solvable configuration of the Fifteen puzzle can be solved in no more than 80 single-tile moves.〔A. Brüngger, A. Marzetta, K. Fukuda and J. Nievergelt, (The parallel search bench ZRAM and its applications ), ''Annals of Operations Research'' 90 (1999), pp. 45–63.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「80 (number)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.