[texhax] Plain TeX: shorter `rightarrow' needed

Uwe Lück uwe.lueck at web.de
Sun Feb 8 21:21:18 CET 2009

At 21:05 08.02.09, Reinhard Kotucha wrote:
>On 8 February 2009 Rodolfo Medina wrote:
>  > In order to denote an oriented $\Gamma$ line, I need to put a small
>  > rightarrow over the $\Gamma$ symbol, such that the plain TeX
>  > $\rightarrow$ is too long.
>  >
>  > Is there a way to get that, and how?

"Missing $ inserted", otherwise I don't like that the arrow is italic while 
Gamma is not. $\mathit{\vec{\Gamma}}$ and 
$\mathop{\Gamma}^{\scriptscriptstyle\to}$ are bad as well. Placing 
something on top of a capital letter is problematic in general. Note that 
in (classical) Greek, diacritical marks are not set on top of capital 
letters, but on their left (learnt this from Claudio Beccari, cf. my 
http://de.wikipedia.org/wiki/Räter), or already that limits of sum or 
integral symbols are set on their right in inline mode. What is the 
convention in this field?

-- Uwe. 

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