Should numbers in inline math equations be displayed using CM math font or Times?

Question

I received a proof for a journal paper (IEEE) where some of the numbers in the inline equations of my manuscript were changed to Times font (font used for text in the template IEEEtran.cls) and some others were not changed to Times and left as CM math font (font used for math in IEEEtran). I would like to be consistent throughout the document and know which one to use. For example, should I use:

$x=1$ m

or

$x=$ 1 m

(where m is for meters)? Another example would be: $x=2y$ or $x=$ 2$y$?

Answer 1

I strongly suggest you to use the siunitx package which will allow consistent typesetting of numbers & units.

\documentclass{article}
\usepackage{siunitx}

\begin{document}

\texttt{\textbackslash num\{\textless Zahl\textgreater\}} formats numbers

Example: \num{1234567890.123}

\texttt{\textbackslash si\{\textless unit\textgreater\}} formats units

Example: \si{\meter/\second^2}

\texttt{\textbackslash SI\{\textless number\textgreater\}\{\textless unit \textgreater\}} formats numbers with units

Example: \SI{1234567890.123}{\meter}

\texttt{\textbackslash numlist\{\textless number;number;number\textgreater\}} formats lists of numbers

Example: \numlist{10;20;30}

\texttt{\textbackslash SIlist\{\textless number;number;number\textgreater\}\{\textless unit\textgreater\}} formats lists of numbers with unit

Example: \SIlist{10;20;30}{\meter}


\texttt{\textbackslash SIrange\{\textless number\textgreater\}\{\textless number\textgreater\}\{\textless unit\textgreater\}} formats number ranges with unit

Example: \SIrange{10}{20}{\meter}

\end{document}