Writing specific symbols

Question

Can you help me to write the following symbol.

Thank you in advance. enter image description here

In what field is the symbol used? This may help in identifying a possible solution. — egreg, Jul 19 '13 at 08:03
May be mixing \perp and =. I think first in $\underline{\underline{\displaystyle\perp}}$ but in this way the bottom lines are wider. — Fran, Jul 19 '13 at 08:11
@Closers: You have found the symbol in "The Comprehensive LaTeX Symbol List" or via "Detexify"? Then please post the result, I could not found the symbol in neither of them. — Heiko Oberdiek, Jul 19 '13 at 08:25
You could have a look at the CircuiTikZ package. It has this symbol as well as a lot of other symbols you might need. — papabravo, Jul 19 '13 at 08:29

Heiko Oberdiek · Answer 1 · 2013-07-19T08:26:17.950

Identification of the symbol

For the case the symbol has a Unicode code point, I have drawn the symbol in shapecatcher.com. The result:

U+23DA EARTH GROUND.

Finding a font that contains the symbol

Next I tried the character search of FileFormat.Info that lists some fonts as result. I recognized the OpenType font FreeMono as part of TeX Live.

Example for LuaLaTeX/XeLaTeX

The font FreeMono is a OpenType font that requires either LuaTeX or XeTeX.

\documentclass{article}

\usepackage{fontspec}
\newcommand*{\earthground}{%
  \begingroup
    \fontspec{FreeMono.otf}^^^^23da%
  \endgroup
}

\begin{document}
  \earthground
\end{document}

Including as image

If you are using pdflatex, then the symbol could be included as image, e.g.:

%%% earthground.tex %%%
\documentclass{standalone}
\usepackage{fontspec}
\begin{document}%
  \fontspec{FreeMono.otf}%
  ^^^^23da
\end{document}

Then the file is converted to the image file earthground.pdf via:

$ lualatex earthground

Users of dvips can convert the file to PostScript:

$ pdftops -eps earthground.pdf

Finally the image is included as usually:

\usepackage{graphicx}
...
\includegraphics{earthground}

@JagathAR: Thanks, fixed. Feel free to correct such kind of obvious typos. — Heiko Oberdiek, Jul 19 '13 at 08:28
Oops! I really thought it was possible using fontspec! ha ha. OK. So we need to run lualatex or xelatex. — Jagath, Jul 19 '13 at 08:35

score 0 · Answer 2 · answered Jul 19 '13 at 08:22

0

In you question, the context is not clear. However, the following will generate a symbol similar to one that you are asking:

$\stackrel{\bot}{\hspace*{.3pt}\raise 2.5pt\hbox{\rule{4pt}{.3pt}\kern-4pt\lower 2pt\hbox{\rule{4pt}{.3pt}}}}$

answered Jul 19 '13 at 08:22

Jagath

4,287

Writing specific symbols

2 Answers2

Identification of the symbol

Finding a font that contains the symbol

Example for LuaLaTeX/XeLaTeX

Including as image