\displaystyleCommand

How to force display style inside inline math#

Wrap the switch and the formula in a group so the style does not leak.

{\displaystyle \sum_{n=1}^\infty \frac{1}{n^2}}

How to keep a nested fraction large#

{\displaystyle \frac{\frac{a}{b}}{\frac{c}{d}}}

How to put limits under an operator in a text-style slot#

{\displaystyle \int_0^1 f(x)\,dx}