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单词 Krawtchouk polynomials
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Krawtchouk polynomials

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克拉夫楚克多项式 Kravchuk polynomials

(重定向自Krawtchouk polynomials)
Kravchuk polynomials  animation
Kravchuk polynomials  animation

克拉夫楚克多项式以超几何函数定义如下

K_n(x;p,N)={N \choose n}^{-1}*\sum_{k=0}^{n}{N-x \choose n-k}*{x \choose k}*(1-1/p)^k=_2F_1(-n,-x;N;1/p)


克拉夫楚克多项式的头几项是

K_0(x,p,N)= 1

K_1(x,p,N)= 1-\frac{x}{p*N}

 K_2(x,p,N)= 1+(\frac{-2}{p*N}+\frac{1}{(p^2*N*(-N+1)})*x-\frac{x^2}{(p^2*N*(-N+1))}

K_3(x,p,N)= 1+(\frac{-3}{(p*N)}+\frac{3}{(p^2*N*(-N+1))\frac{2}{(p^3*N*(-N+1)*(-N+2))})*x+(-3/(p^2*N*(-N+1))+3/(p^3*N*(-N+1)*(-N+2)))*x^2-x^3/(p^3*N*(-N+1)*(-N+2))

量子Q克拉夫楚克多项式→ 克拉夫楚克多项式:

\lim_{a \to 1}=K_{n}^{qtm}(q^x};p,N;q)=K_{n}(x;p^{-1},N)

令双Q克拉夫楚克多项式c=1=p^{-1},并令q→1,即得克拉夫楚克多项式

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Kravchuk polynomials 克拉夫楚克多项式

(重定向自Krawtchouk polynomials)

Kravchuk polynomials or Krawtchouk polynomials (also written using several other transliterations of the Ukrainian name "Кравчу́к") are discrete orthogonal polynomials associated with the binomial distribution, introduced by MikhailKravchuk (1929). The first few polynomials are (for q=2):

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更新时间:2025/6/17 22:53:25