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In article <134@np1.hep.nl> t19@np1.hep.nl (Geert J v Oldenborgh) writes:
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| I have the following formula which I'd like to typeset in LaTeX.  
| 
|        \mu s_j
| \delta
|        s_i s_j
| 
| Does anyone have a solution which will align the indices both horizontally 
| and vertically?  (N.B. The solution given in the LaTeX manual
| $\delta{}^\mu_{s_i}{}^{s_j}_{s_j}$ does not work as the second column is 
| lifted by the descending j's.  Replacing {} by \mathstrut works on some 
| systems, but not on others).  Many thanks in advance ...
| 
| Geert Jan van Oldenborgh, t19@nikhefh.hep.nl
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I'm not sure exactly what you're asking.  You want the \mu and the s_j
in the top row to line up on the same baseline, the s_i and the s_j in
the bottom row to line up on the same baseline, and you want the \mu
and the s_i in the first column, and the s_j and s_j in the second column.

Plus you want a little space between the two columns, it looks like.

Weird, but I'll try my hand at it.

$\delta^{\vphantom{j}\mu}_{\vphantom{j}s_i} {}^{s_j}_{s_j}$

The key thing is to put those \vphantom{j}s in; they take up no
horizontal space, but create essentially a box the height and
depth of the formula contained in the parameter.

				--Ken McGlothlen
				  mcglk@blake.acs.washington.edu