Textomega symbol in equation

Question

Is it possible to get an exact \textomega like symbol in equation??

MWE:

\documentclass[
DIV=12,          
BCOR=5mm,       
]{scrbook}[2015/10/03]

\usepackage{tipa}
\usepackage[
intlimits,
sumlimits
]{amsmath}

\begin{document}

\begin{equation}
E_A =   k\,\phi\,\omega
\end{equation}

I want the same  "\textomega" \, symbol in math mode, if it's possible. 

\end{document}

As a side note use `` instead of " on the left side of your quote to make the quotation marks face the right way. — Dan, Oct 27 '16 at 17:18

score 3 · Accepted Answer · edited Apr 13 '17 at 12:34

3

Since boxes are composed in text mode, by default, one merely needs, in math mode, to employ \mbox{\textomega} to get the upright glyph. If smaller sizes are needed, more work would be needed.

EDITED to take Emma's very good suggestion to use \text rather than \mbox as the enabling macro. While it requires the amsmath package to be loaded, it has the added benefit of adjusting itself to smaller math styles automatically.

RE-EDIT: In comments below, Andrew suggests using \textnormal{\textomega} instead of \text{\textomega}, since the latter can be adversely influenced, as in the case of theorem statements, if the prevailing environment is \textit.

\documentclass[
DIV=12,          
BCOR=5mm,       
]{scrbook}[2015/10/03]

\usepackage{tipa}
\usepackage[
intlimits,
sumlimits
]{amsmath}

\begin{document}

\begin{equation}
E_A =   k\,\phi\,\textnormal{\textomega}
\end{equation}

I want the same  "\textomega" \, symbol in math mode, if it's possible. 

\end{document}

If pdflatex is being used, another option is to \unslant the regular math-mode \omega glyph, in the manner of this answer, Upright Greek font fitting to Computer Modern

edited Apr 13 '17 at 12:34

Community

1

answered Oct 27 '16 at 16:46

Steven B. Segletes

237,551

1

I believe \text also works in place of \mbox. That seems more natural to me. – Emma Oct 27 '16 at 18:12
@Emma Thanks. It has the added benefit of auto-adjusting to the current mathstyle (subscript, etc.) – Steven B. Segletes Oct 27 '16 at 18:21
1

You might want \textnormal instead of \text - otherwise you may get surprises when the surrounding text is bold or italic... – Andrew Swann Nov 07 '16 at 07:37
@AndrewSwann I am strugglng to come up with a use case that demonstrates your cited problem... $\boldmath E_A = k\,\phi\,\text{\textomega}$ does not cause any issue, $\text{\textbf{This is \textomega}}$ makes the omega bold, but not unexpectedly. – Steven B. Segletes Nov 07 '16 at 10:34
1

@StevenB.Segletes E.g. in a theorem statement where \textit is in effect, this changes the shape of the \textomega but not of the rest of the equation. – Andrew Swann Nov 07 '16 at 11:29

score 1 · Answer 2 · answered Oct 27 '16 at 20:01

You can use Claudio Beccari's Greek font:

\documentclass{article}
\usepackage{amsmath}

\DeclareFontFamily{U}{greek}{}
\DeclareFontShape{U}{greek}{m}{n}{
  <5><6><7><8><9><10><10.95><12><14.4> 
  <17.28><20.74><24.88><29.86><35.83>
  genb*grmn
}{}
\DeclareSymbolFont{upgreek}{U}{greek}{m}{n}
\DeclareMathSymbol{\upomega}{\mathord}{upgreek}{`w}

\begin{document}

\begin{equation}
E_A = k\phi\upomega
\end{equation}

\end{document}

Other letters can be added. If you only need the omega, wasting a math group might be too much, here's a more economical version.

\documentclass{article}
\usepackage{amsmath}

\DeclareFontFamily{U}{greek}{}
\DeclareFontShape{U}{greek}{m}{n}{
  <5><6><7><8><9><10><10.95><12><14.4>
  <17.28><20.74><24.88><29.86><35.83>
  genb*grmn
}{}
\DeclareRobustCommand{\upomega}{{\text{\usefont{U}{greek}{m}{n}w}}}

\begin{document}

\begin{equation}
E_A = k\phi\upomega
\end{equation}

\end{document}

Textomega symbol in equation

2 Answers2