<<< mml $\text{Inline, display style, thick line }{\displaystyle \genfrac{}{}{1pt}{}{x-1}{0.98\times {10}^2+y}}\text{, the superscripted 2 should be script size.}$ >>> native [ EText TextNormal "Inline, display style, thick line\160" , EFraction NormalFrac (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "1" ]) (EGrouped [ EGrouped [ ENumber "0.98" , ESymbol Bin "\215" , ESuper (ENumber "10") (ENumber "2") ] , ESymbol Bin "+" , EIdentifier "y" ]) , EText TextNormal ", the superscripted 2 should be script size." ]