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From: Sanjoy Mahajan <sanjoy@MIT.EDU>
To: ntg-context@ntg.nl
Subject: how to make a \lambdabar (like \hbar)
Date: Mon, 10 Mar 2014 06:15:42 -0400	[thread overview]
Message-ID: <874n36we9d.fsf@approx.mit.edu> (raw)

\hbar is used a lot in physics.  Once in a while, one also uses
\lambdabar to mean \lambda/2\pi.  It's Unicode description is 'LATIN
SMALL LETTER LAMBDA WITH STROKE' (U+019B).

I've been using this hack

  \def\lambdabar{\lambda\kern-1ex\raise0.65ex\hbox{-}}

But it's not beautiful.  Is there a better way to get a lambdabar
into (or from) the math fonts?  I tried

  \def\lambdabar                    {\Umathchar  "0"0"00019B }

by analogy with the definition of \hbar in luatex-math.tex, but it
produces a blank space.  There must be no entry for it in the regular
(or Palatino) math fonts.

For reference, the following thread had a discussion about \hbar

<http://www.ntg.nl/pipermail/ntg-context/2013/070810.html>

and \hbar works well (using MkIV 2014.02.14).

-Sanjoy
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             reply	other threads:[~2014-03-10 10:15 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-10 10:15 Sanjoy Mahajan [this message]
2014-03-10 14:30 ` Aditya Mahajan
2014-03-10 15:29   ` Sanjoy Mahajan

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