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Legendre rational functions : ウィキペディア英語版
Legendre rational functions

In mathematics the Legendre rational functions are a sequence of functions which are both rational and orthogonal. A rational Legendre function of degree ''n'' is defined as:
:R_n(x) = \frac\,L_n\left(\frac\right)
where L_n(x) is a Legendre polynomial. These functions are eigenfunctions of the singular Sturm-Liouville problem:
:(x+1)\partial_x(x\partial_x((x+1)v(x)))+\lambda v(x)=0
with eigenvalues
:\lambda_n=n(n+1)\,
== Properties==

Many properties can be derived from the properties of the Legendre polynomials of the first kind. Other properties are unique to the functions themselves.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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