DLMF:6.5.E4 (Q2244): Difference between revisions

Revision as of 01:24, 2 January 2020

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Language	Label	Description	Also known as
English	DLMF:6.5.E4	No description defined

{\displaystyle{\displaystyle\tfrac{1}{2}(\mathrm{Ei}\left(x\right)-E_{1}\left(% x\right))=\mathrm{Chi}\left(x\right)=\mathrm{Ci}\left(ix\right)-\tfrac{1}{2}% \pi i.}}

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{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2aadec

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@@ Property / Symbols used @@
+the ratio of the circumference of a circle to its diameter
+Normal rank
+test:  ${\displaystyle{\displaystyle\pi}}$ 
\cpi
+xml-id: C3.S12.E1.m2aadec