Multinomial Theorem - Takouteiri

Japanese: 多項定理 - たこうていり
Multinomial Theorem - Takouteiri

The expansion formula for the nth power (n is a positive integer) of an algebraic sum of three or more terms is called the polynomial theorem.

Here, p 1 , p 2 , …, p k are non-negative integers whose sum is n, and the symbol Σ (sigma) represents the sum of all these pairs. Note that ! represents a factorial, and when m is a positive integer, m!=m(m-1)(m-2)…2·1
When m is 0, 0 != 1 is represented. The binomial theorem is used to prove the multinomial theorem.

[Yoshio Takeuchi]

[Reference] | Binomial theorem
Application of the Multinomial Theorem
©Shogakukan ">

Application of the Multinomial Theorem


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

3項以上の代数和のn乗(nは正整数)の展開公式を多項定理という。式で書けば

となる。ただしp1、p2、……、pkは負でない整数で、それらの和がnとなる組であり、記号Σ(シグマ)はこれらすべての組についての総和を表す。なお!は階乗を表し、mが正整数のとき
  m!=m(m-1)(m-2)……2・1
を、mが0のとき0!=1を表す。多項定理の証明には二項定理が用いられる。

[竹内芳男]

[参照項目] | 二項定理
多項定理の応用
©Shogakukan">

多項定理の応用


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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