[Tex/LaTex] Increasing Parentheses Size in Combinations

Question

How do you make the parentheses size of combination brackets larger?

I used the code

    \dbinom{\floor*{\dfrac{x}{2}}}{2}

and the result was
but the parentheses weren't tall enough to cover the whole combination. Is there any way to get the parentheses to fit the height of the combination; to get the parentheses covering the floor function too? Or is this normal?

Answer 1

like this?

\documentclass[oneside,12pt]{scrartcl}
\usepackage[ngerman]{babel}
\usepackage{mathtools}
\DeclarePairedDelimiter\floor{\lfloor}{\rfloor}
\begin{document}
    \[\dbinom{\floor*{\dfrac{x}{2}}}{2}\]
    \[\left(\begin{array}{@{}c@{}}
    \floor*{\dfrac{x}{2}}\\2
    \end{array}\right)\]
\end{document}