作者pankk (KK)
看板Grad-ProbAsk
标题[问题] Generating Functions for Point Set Distances
时间Sat Apr 11 11:42:55 2009
Given a multiset of integers A = {a }, we call polynomial A(x) = Σ x^(a )
i i i
the generating function for A. Let A = {1, 2, 3}. Verify that the generating
function for ΔA is ΔA(x) = A(x)A(1/x).
这题是An Introduction to Bioinformatics Algorithms後面的习题，
多加了一个 set A = {1, 2, 3}.
不过可能是小弟我数学不好，找到的资料不过看了很久似懂非懂，
网路找到的 Generating Functions for Point Set Distances
http://mathpages.com/home/kmath390.htm
可以请大家帮忙提点一下吗？
谢谢
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