Placing dot product symbol slightly lower

Question

I would like to replicate the placement of the dot product symbol in the following expression:

I need the dot product symbol to be of similar thickness, which I can manage to get with bigcdot, though the symbol placement is in the "centre" (at the same level as the horizontal line of the + symbol). Is there a fix for this? I would like to keep the font package as mathptmx.

egreg · Accepted Answer

You can do it, but I'd not recommend such an ambiguous notation.
documentclass{article}
usepackage{mathptmx}
usepackage{amsmath}

DeclareSymbolFont{boldface}{OT1}{ptm}{bx}{n}
DeclareSymbolFontAlphabet{mathbf}{boldface}
DeclareMathSymbol{wrongdot}{mathord}{boldface}{`.}

begin{document}

[
(mathbf{r}-mathbf{i}-2mathbf{j})wrongdot(3mathbf{i}+mathbf{j}+mathbf{k})=0.
]

end{document}

The name wrongdot has been chosen at random. ? Change it to your liking.

Placing dot product symbol slightly lower

One Answer

Add your own answers!

Ask a Question