<<< omml a x f a s ( y )   d y   d s = f a x ( y ) ( x − y )   d y >>> native [ ESubsup (ESymbol Op "\8747") (EIdentifier "a") (EIdentifier "x") , EGrouped [] , ESubsup (ESymbol Op "\8747") (EIdentifier "a") (EIdentifier "s") , EIdentifier "f" , ESymbol Open "(" , EIdentifier "y" , ESymbol Close ")" , ESpace (1 % 6) , EIdentifier "d" , EIdentifier "y" , ESpace (1 % 6) , EIdentifier "d" , EIdentifier "s" , ESymbol Rel "=" , ESubsup (ESymbol Op "\8747") (EIdentifier "a") (EIdentifier "x") , EIdentifier "f" , ESymbol Open "(" , EIdentifier "y" , ESymbol Close ")" , ESymbol Open "(" , EIdentifier "x" , ESymbol Bin "\8722" , EIdentifier "y" , ESymbol Close ")" , ESpace (1 % 6) , EIdentifier "d" , EIdentifier "y" ]