[Tex/LaTex] A medium dot in math mode

amsmathmath-mode

Is there a nice way to produce a medium-sized dot to use in a formula like this:

$x_{i\cdot} = \sum_{j} x_{ij}$

The \cdot is not very visible.

Best Answer

One way would be to use \scalebox from the graphicx package. Here is a comparrison of before and after:

enter image description here

Code:

\documentclass{article}
\usepackage{graphicx}

\newcommand*{\LargerCdot}{\raisebox{-0.25ex}{\scalebox{1.2}{$\cdot$}}}

\begin{document}
$x_{i\cdot} = \sum_{j} x_{ij}$


$x_{i\LargerCdot} = \sum_{j} x_{ij}$
\end{document}
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