Limit formulas for ratios between derivatives of the gamma and digamma functions at their singularities

作者：Qi, Feng^*

来源：Filomat, 2013, 27(4): 601-604.

DOI：10.2298/FIL1304601Q

• Alternative proof
• Limit formula
• Ratio
• Derivative
• Gamma function
• Digamma function
• Singularity
• Polygamma function
• Explicit formula
• Cotangent

In the note, the author presents alternative proofs for limit formulas of ratios between derivatives of the gamma function and the digamma function at their singularities.

• 出版日期2013
• 单位河南理工大学