…(1) Mathematical barycenter When there are n points A1 , A2 , …, An in a space, take one point O and consider a vector. For real numbers w1 , w2 , …, wn that satisfy w1 ≧0, w2 ≧0, …, wn ≧ 0 , w1 + w2 + … + wn = 1 , create a point P that satisfies, and P will not depend on how O is taken . This point P is called the barycenter when weights w1, w2, …, wn are assigned to A1 , A2 , … , An , and in particular when w1 = w2 = … = wn = 1/ n , P is simply called the barycenter of A1 , A2 , …, An . … *Some of the terminology explanations that mention "barycenter" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(1)数学の重心barycenter 空間にn個の点A1,A2,……,Anがあるとき,1点Oをとってベクトルを考え,w1≧0,w2≧0,……,wn≧0,w1+w2+……+wn=1を満たす実数w1,w2,……,wnに対して,を満たす点Pをつくれば,PはOのとり方によらない。この点PをA1,A2,……,Anに重みw1,w2,……,wnをつけたときの重心といい,とくにw1=w2=……=wn=1/nのときのPを単にA1,A2,……,Anの重心という。… ※「barycenter」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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