\starttext
\startformula
\int_{0}^{1} g(x)\,\diff x = 1
\stopformula
\setupmathematics[integral=nolimits]
\startformula
\int_{0}^{1} g(x)\,\diff x = 1
\stopformula
\setupmathematics[integral=limits]
\startformula
\int_{0}^{1} g(x)\,\diff x = 1
\stopformula
\stoptext
Wolfgang