<<< tex \boxed{x^2 + y^2 + z^2} >>> native [ EBoxed (EGrouped [ ESuper (EIdentifier "x") (ENumber "2") , ESymbol Bin "+" , ESuper (EIdentifier "y") (ENumber "2") , ESymbol Bin "+" , ESuper (EIdentifier "z") (ENumber "2") ]) ]