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I would like to know how to make a character like \hslash, but with a 'd' instead of an 'h'. I know that \hbar is defined using \mathchar'26, might there be a similar character for the slash in \hslash?

nivk
  • 335
  • Here: http://detexify.kirelabs.org/classify.html ? \dj? – Sigur Apr 03 '14 at 02:37
  • Sorry, I am looking for the diagonal 'slash', not the horizontal 'bar'. – nivk Apr 03 '14 at 02:40
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    there is probably no reason that the same \mathchar'26 can't be used, just with some horizontal adjustments to make sure it crosses the stem in the correct place. sorry, i don't have access to a system where i can test it at the moment. – barbara beeton Apr 03 '14 at 02:49
  • Apologies, I must be explaining myself poorly. \mathchar'26 is a short horizontal line used in the definition of \hbar. The character that I seek is a short diagonal line, similar to the one appearing in the character \hslash in the amssymb package. – nivk Apr 03 '14 at 02:57
  • Also, welcome to TeX.SX! You can have a look at our starter guide to familiarize yourself further with our format. – Sean Allred Apr 03 '14 at 03:08

1 Answers1

9

The \hslash symbol is a unique glyph. Here's an emulation of it obtained by scaling, rotating and raising a minus sign:

\documentclass{article}
\usepackage{amssymb,graphicx}
\newcommand{\hslashslash}{%
  \raisebox{.9ex}{%
    \scalebox{.7}{%
      \rotatebox[origin=c]{18}{$-$}%
    }%
  }%
}
\newcommand{\dslash}{%
  {%
   \vphantom{d}%
   \ooalign{\kern.05em\smash{\hslashslash}\hidewidth\cr$d$\cr}%
   \kern.05em
  }%
}
\begin{document}
$\hslash\ne\dslash^2$
\end{document}

enter image description here

egreg
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  • But how did you find that angle? I am clueless. :) –  Apr 03 '14 at 08:47
  • @HarishKumar Trial and error; the first attempt was 20 degrees, but typesetting it over the \hslash revealed it was too much; with 18 degrees it was perfect. There's no indication of the angle in the Metafont source for \hslash (bsymbols.mf, character octal 175). The bar is slightly thicker for \dslash, though. :( – egreg Apr 03 '14 at 08:58
  • This is beautiful, just what I needed! Thank you! – nivk Apr 03 '14 at 16:14
  • If now I try to use this inside of a command like $\vec{\dslash}$, this gives interesting results... How would you solve this to avoid that the arrow is so high? – mwoua Apr 24 '20 at 16:48
  • @mwoua I get this picture (click to see) – egreg Apr 24 '20 at 17:04
  • @egreg Hmmm... Cause I get this: link Note that I tweeked it a bit to do it on p rather than d. Edit: without any changein your code (by keeping it on the letter d, not tweeking the numbers etc) I still get an arrow much higher than the normal \vec{d}... – mwoua Apr 24 '20 at 17:20
  • @mwoua Well, You seem to have defined incorrectly \pslash. Please, open a new question with all details. – egreg Apr 24 '20 at 20:14
  • @egreg Well it ooks like it... But the thing is, when I copy-paste your code, I have the same thing: an arrow too high. I will open some new question. – mwoua Apr 24 '20 at 20:59