...For an irreducible polynomial f (x,y) , such as x2 ( x +1 )-y2 = 0 or x4 + y4-2x ( x2 - y2 )=0, the set of points ( x , y ) such that f ( x , y )=0 is a plane algebraic curve (affine plane algebraic curve). When the degree of f ( x , y ) is n , it is called an n -th degree curve. ... *Some of the terminology explanations that mention "affine plane algebraic curves" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…x2(x+1)-y2=0やx4+y4-2x(x2-y2)=0のように,既約な2変数多項式f(x,y)に対してf(x,y)=0を満たす点(x,y)の全体を平面代数曲線(アフィン平面代数曲線)という。f(x,y)の次数がnのときn次曲線という。… ※「アフィン平面代数曲線」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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