<<< mml ${\oint }_0^{1}f\left(x\right)dx$ >>> native [ ESubsup (ESymbol Op "\8750") (ENumber "0") (ENumber "1") , EIdentifier "f" , EDelimited "(" ")" [ Right (EIdentifier "x") ] , ESpace (1 % 9) , ESymbol Ord "\8518" , EIdentifier "x" ]