On Mon, Apr 5, 2010 at 4:52 PM, Vafa Khalighi <vafak...@gmail.com> wrote:
> This is a very useful primitive that I just found now. > http://tex.loria.fr/moteurs/etex_ref.html#predisplaydirection says: > > "an internal read/write integer, initialised by e-TeX to indicate the > direction of the last partial paragraph before a display; it is used to > control the placement of elements such as equation numbers, and can be > explictly set to affect this placement. " > > But whatever integer, I give to this primitive, I see no difference. Could > please someone send a minimal document showing how this primitive actually > works? > > Well, I've never used this, but a little experimentation indicates that it seems to do just what the doc says; see attached. Note that there also appears to be a spacing bug associated (see the last example). JK
direction.tex
Description: TeX document
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