Difference between revisions of "DLMF:5.7.E7 (Q2083)"

Revision as of 17:34, 1 January 2020

No description defined

Language	Label	Description	Also known as
English	DLMF:5.7.E7	No description defined

{\displaystyle{\displaystyle\psi\left(\frac{z+1}{2}\right)-\psi\left(\frac{z}{% 2}\right)=2\sum_{k=0}^{\infty}\frac{(-1)^{k}}{k+z}.}}

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DLMF:5.7.E7

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{\displaystyle{\displaystyle\psi\left(\NVar{z}\right)}}

C5.S2.E2.m2acdec

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@@ Property / Symbols used @@
+psi (or digamma) function
@@ Property / Symbols used: psi (or digamma) function / rank @@
+Normal rank
@@ Property / Symbols used: psi (or digamma) function / qualifier @@
+Defining formula:  ${\displaystyle{\displaystyle\psi\left(\NVar{z}\right)}}$ 
\digamma@{\NVar{z}}
@@ Property / Symbols used: psi (or digamma) function / qualifier @@
+xml-id: C5.S2.E2.m2acdec