\setupbodyfont[pagella]

\setupbackend[export=yes]

% \enabletrackers[export.trace]

\starttext

    \startformula
        \int^2
    \stopformula

    $\int^2$

    $\displaystyle\int^2$

    \startformula
        \sum^2
    \stopformula

    \startformula
        \sum^1_1{\frac{1}{\frac{1}{\frac{1}{1}}}}
    \stopformula

    \startformula
        \int^\infty_2 \nabla 3
    \stopformula

    \startformula
        \sum^\infty_2 \nabla 3
    \stopformula

\stoptext
