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Modified 3-Spline Method for Evaluating the Euler Digamma Function

 

作者: F.T. Lindstrom,  

 

期刊: Technometrics  （Taylor Available online 1979）
卷期: Volume 21, issue 3  

页码: 307-311

 

ISSN:0040-1706

 

年代: 1979

 

DOI:10.1080/00401706.1979.10489774

 

出版商: Taylor & Francis Group

 

关键词: Splines;Modified splines;Digamma function;Gamma function;Log gamma function

 

数据来源: Taylor

 

摘要:

The modifiedksplines are introduced. A simple linear model results from applying a variational principle to a modified 3-spline approximation of Φ′ on [1,2]. An approximation of Φ is obtained analytically by integration. The coefficients needed to use this approximate method are tabulated.

 

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