(1)

where are orthogonal polynomials with weighting function such that

(2)

and

(3)

with is the coefficient of in .

Hildebrand, F. B. Introduction to Numerical Analysis. New York: McGraw-Hill, p. 322, 1956.

CITE THIS AS:

Weisstein, Eric W. "Christoffel-Darboux Identity." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Christoffel-DarbouxIdentity.html