<<< native [ ESub (EIdentifier "\981") (EIdentifier "n") , EDelimited "(" ")" [ Right (EIdentifier "\954") ] , ESymbol Rel "=" , EFraction NormalFrac (ENumber "1") (EGrouped [ ENumber "4" , ESuper (EIdentifier "\960") (ENumber "2") , ESuper (EIdentifier "\954") (ENumber "2") ]) , ESubsup (ESymbol Op "\8747") (ENumber "0") (ESymbol Ord "\8734") , EFraction NormalFrac (EGrouped [ EMathOperator "sin" , EDelimited "(" ")" [ Right (EIdentifier "\954") , Right (EIdentifier "R") ] ]) (EGrouped [ EIdentifier "\954" , EIdentifier "R" ]) , EFraction NormalFrac (ESymbol Ord "\8706") (EGrouped [ ESymbol Ord "\8706" , EIdentifier "R" ]) , EDelimited "[" "]" [ Right (ESuper (EIdentifier "R") (ENumber "2")) , Right (EFraction NormalFrac (EGrouped [ ESymbol Ord "\8706" , ESub (EIdentifier "D") (EIdentifier "n") , EDelimited "(" ")" [ Right (EIdentifier "R") ] ]) (EGrouped [ ESymbol Ord "\8706" , EIdentifier "R" ])) ] , ESpace (1 % 6) , EIdentifier "d" , EIdentifier "R" ] >>> mml $${\varphi }_n\left(\kappa \right)=\frac{1}{4{\pi }^2{\kappa }^2}{\int }_0^{\infty }\frac{sin\left(\kappa R\right)}{\kappa R}\frac{\partial }{\partial R}\left[R^2\frac{\partial D_n\left(R\right)}{\partial R}\right]dR$$