<<< native [ ESubsup (ESymbol Op "\8747") (ENumber "0") (ENumber "1") , EIdentifier "f" , EDelimited "(" ")" [ Right (EFraction NormalFrac (EIdentifier "x") (ENumber "2")) ] , ESpace (1 % 9) , ESymbol Ord "\8518" , EIdentifier "x" ] >>> tex \int_{0}^{1}f\left( \frac{x}{2} \right)\mspace{2mu}\mathbb{d}x