Polynomials in two or more n variables X 1 , …, X n
A symmetric formula f in n variables is such that for any permutation σ of 1, 2, …, n , If the roots of the polynomial f ( X ) = X n + a 1 X n -1 +……+ a n -1 X + a n are α 1 , …, α n , then the relationship between the roots and the coefficients is a j =(-1) j S j (α 1 ,……,α n ) [Tsuneo Kanno] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
2個以上のn個の変数X1、……、Xnの多項式
n変数の対称式fは、1、2、……、nの任意の置換σに対し、 多項式f(X)=Xn+a1Xn-1+……+an-1X+anの根をα1、……、αnとすると、いわゆる根と係数との関係式 [菅野恒雄] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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