Symbol $\perp$ with a shorter horizontal line to be used as a superscript

Question

i was wondering whether there exists a predefined Latex symbol or command to write $\perp$ with a shorter horizontal line as shown in the image below which has been taken from an old research article in fluid mechanics. In fact, i would like to use that as a superscript liekwise.

Any help or idea is highly appreciated. Thank you

score 9 · Accepted Answer · answered Feb 10 '20 at 16:42

The version of \perp in the MnSymbol package is narrower than the 'standard' version, but also slightly shorter. To load it without changing lots of other things, we can borrow most of the code from @Leo Liu's answer to Importing single symbol from MnSymbol. Then we obtain the following:

\documentclass{article}

\DeclareFontFamily{U} {MnSymbolA}{}
\DeclareFontShape{U}{MnSymbolA}{m}{n}{
  <-6> MnSymbolA5
  <6-7> MnSymbolA6
  <7-8> MnSymbolA7
  <8-9> MnSymbolA8
  <9-10> MnSymbolA9
  <10-12> MnSymbolA10
  <12-> MnSymbolA12}{}
\DeclareFontShape{U}{MnSymbolA}{b}{n}{
  <-6> MnSymbolA-Bold5
  <6-7> MnSymbolA-Bold6
  <7-8> MnSymbolA-Bold7
  <8-9> MnSymbolA-Bold8
  <9-10> MnSymbolA-Bold9
  <10-12> MnSymbolA-Bold10
  <12-> MnSymbolA-Bold12}{}

\DeclareSymbolFont{MnSyA} {U} {MnSymbolA}{m}{n}

\DeclareMathSymbol{\mnperp}{\mathrel}{MnSyA}{217}

\begin{document}
\[
\begin{array}{ll}
\perp & \mnperp \\ \mnperp &
\end{array}
\quad
 A^\perp \quad A^\mnperp
\]

\end{document}

Thanks for your great answer! – keynes Feb 10 '20 at 16:44 — keynes, Feb 10 '20 at 16:44

score 8 · Answer 2 · answered Feb 10 '20 at 21:24

Adjust to suit:

\documentclass{article}
\usepackage{amsmath,l3draw,xparse}

\ExplSyntaxOn

\NewDocumentCommand{\sperp}{}
 {% short perp
  {\mathord{\text{\daddy_sperp:}}}
 }

\cs_new_protected:Nn \daddy_sperp:
 {
  \use:c { check@mathfonts }
  $\mspace{1mu}$
  \draw_begin:
  \draw_cap_round: % good for CM fonts
  \draw_linewidth:n { \dim_to_fp:n { \fontdimen8\textfont2 }/18 } % thickness of the fraction line
  \draw_path_moveto:n { 0em, 0ex }
  \draw_path_lineto:n { 0.3em, 0ex }
  \draw_path_use:n { stroke }
  \draw_path_moveto:n { 0.15em, 0ex }
  \draw_path_lineto:n { 0.15em, 1.3ex }
  \draw_path_use:n { stroke }
  \draw_end:
  $\mspace{1mu}$
 }

\ExplSyntaxOff

\begin{document}

$A^{\sperp}_n$ $\perp\sperp\scriptstyle\sperp\scriptscriptstyle\sperp$

\end{document}

@manooooh I mostly use the OP's nickname as prefix. – egreg Feb 11 '20 at 09:00 — egreg, Feb 11 '20 at 09:00

Steven B. Segletes · Answer 3 · 2020-02-10T22:10:44.613

Works in all math styles...can easily choose scale by changing Vert/Horz. stretch parameters shown as .6 and .5. Line thicknesses will always be good, since this is composed from an overlay of - and \vert in the appropriate math style.

\documentclass{article} 
\usepackage{stackengine,scalerel}
\newcommand\newperp{\mathbin{\ThisStyle{\setbox0=\hbox{%
  \abovebaseline[-\dimexpr.5\LMex+.2ex]{%
  \ensurestackMath{\stackengine{-\dimexpr.6\LMex+.2ex}%
  {\SavedStyle\hstretch{.6}{-}}% ADJUSTABLE V SCALE
  {\SavedStyle\vstretch{.5}{\vert}}% ADJUSTABLE H SCALE
  {O}{c}{F}{F}{S}}}}\dp0=0pt\box0}}}
\begin{document} 

$A\newperp B$
$\scriptstyle A\newperp B$
$\scriptscriptstyle A\newperp B$

$A^{\newperp}_n$
\end{document}

Changing stretches to .7/.6 changes result to

Symbol $\perp$ with a shorter horizontal line to be used as a superscript

3 Answers3