Hi Khaled:

P.S.2 I posted a more funny LuaTeX logo a while ago, it was a kind of
joke actually, just in case some one came across it and thought I was
seriously proposing it.

Actually we can make a nice definition using the RL typesetting ... as not that many fonts have a proper aT kerning we can do the following:

\def\LuaTeX
  {\begingroup
   Lua%
   \setbox0\hbox{oT}%
   \setbox2\hbox{o\kern0ptT}%
   \ifdim\wd0=\wd2
     \setbox0\hbox dir TRT{To}%
     \setbox2\hbox{T\kern0pto}%
     \hskip\dimexpr\wd0-\wd2\relax
   \fi
   \TeX
   \endgroup}

Of course this ignores the fact that the a is not symmetrical which is why we use the o instead but it looks impressive (as the T normally is symmetrical we don't really need the need the dir).

Maybe I should write an article about it (as i've seen quite some articles / talks about how complex it is to do tex related logos) ...

Hans


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