I have the following equation:
\begin{equation*}
t \leq \lfloor {(\frac{R}{\rho})}^2 \rfloor
\end{equation*}
the output looks like this:
While I want it to look like this:
where the floor signs look more nice.
can you please tell me what to do? thanks in advance.
Before someone suggests \left and \right... :-)
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
t \leq \biggl\lfloor \biggl(\frac{R}{\rho}\biggr)^{!!2} \biggr\rfloor
\end{equation}
\end{document}
Note the small negative space added in the exponent.
My personal preference goes to \DeclarePairedDelimiter from mathtools, which allows you to choose the scaling if you really want to:
\documentclass{article}
\usepackage{mathtools} % loads amsmath
\DeclarePairedDelimiter{\floor}{\lfloor}{\rfloor}
\begin{document}
\begin{equation}
\floor[\bigg]{\biggl(\frac{R}{\rho}\biggr)^{!!2}}
\qquad \floor{\biggl(\frac{R}{\rho}\biggr)^{!!2}} % automatic scaling with left/right
\end{equation*}
\end{document}
I find the second version horrible but that is just my personal taste...
These are two standard ways to go:
\documentclass{memoir}
\usepackage{amsmath}
\begin{document}
\begin{equation}
t \leq \lfloor {(\frac{R}{\rho})}^2 \rfloor
\end{equation}
\begin{equation}
t \leq \left\lfloor {\left(\frac{R}{\rho}\right)}^2 \right\rfloor
\end{equation}
\begin{equation}
t \leq \biggl\lfloor {\biggl(\frac{R}{\rho}\biggr)}^2 \biggr\rfloor
\end{equation}
\end{document}
There is also an alternative with https://ctan.org/pkg/mathtools.
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