Formula:164

Digital Library of Mathematical Functions ID 1.6.E14

${\displaystyle{\displaystyle\epsilon_{jk\ell}=\begin{cases}+1,&\text{if }j,k,\ell\text{ is even permutation of }1,2,3,\\ -1,&\text{if }j,k,\ell\text{ is odd permutation of }1,2,3,\\ \phantom{-}0,&\text{otherwise}.\end{cases}}}$

Symbols List

• ${\displaystyle{\displaystyle j}}$: integer
• ${\displaystyle{\displaystyle k}}$: integer
 

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