mailing-list for TeXmacs Users

[Alvaro Tejero Cantero <address@hidden>]

Hello *,

In LaTeX, some people try to avoid unaligned consecutive subscripts 
such as {mn} and {ls} in the following example:

$   c_{mn}c^{\dag}_{ls}   $

by creating an empty superscript (^{}) to the first 'c'.

For some reason, this gives the right amount of vertical space to push 
the subindexes down enough to perfectly match those of the c^{\dag} symbol.

But it is clearly a ugly hack (ie, it doesn't work for \frac{1}{2} 
instead of \dag).

What is recommended in such cases for TeXmacs? evidently, adding an 
empty superscript doesn't produce any extra vertical space (should this 
be considered a bug in TeX??), so one should perhaps use \phantom as in

$   c^{\phantom{\dag}}_{mn}c^{\dag}_{ls}   $

but that is not fast to type.

How to do better? Maybe \phantom deserves a keybinding of its own?
Is it unrealistic to seek for such finesse in subscript alignment?


'Alvaro.