This paper presents an optimum numerical algorithm of center rule for the approximateevaluation of singular integrals over rectangular domains with a inner singularity.
Brand value connotation and composition of complexity, and approximate abstractness, cause evaluation methods diversity and assessment results differentiation.
品牌价值内涵和构成的复杂性及近似抽象性，导致评估方法多元化和评估结果差异化。
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Finally, a numerical example is given under a special probability model, and the evaluation for the approximate and exact lower co...