<div><div class="gmail_quote">On Mon, Apr 5, 2010 at 4:52 PM, Vafa Khalighi <span dir="ltr"><<a href="mailto:vafakh84@gmail.com">vafakh84@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div dir="ltr">This is a very useful primitive that I just found now. <a href="http://tex.loria.fr/moteurs/etex_ref.html#predisplaydirection" target="_blank">http://tex.loria.fr/moteurs/etex_ref.html#predisplaydirection</a> says:<br>
<br>"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. "<br><br>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?<br></div>
<div dir="ltr"><br></div></blockquote><div class="gmail_quote"><br></div>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).<div>
<br></div><div>JK</div><div><br></div></div></div>