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**To**:*math-font-discuss@cogs.susx.ac.uk***Subject**:**Re: Capital subscript are too large****From**:*Michael Downes <MJD@MATH.AMS.ORG>***Date**: 20 Aug 1993 11:33:40 -0400 (EDT)

J"org wrote: > We have an axial coupling constant, conventionally called $g_A$. However, > in this combination the `A' does not really look subscript. After some > experimenting, I came up with the following: $g_{\text{\sc A}}$ which looks > fine. That the `A' is now upright is not that bad in this case, in fact it > is not a mathematical symbol but has textual semantics. > > I think this little problem should have a more general solution. I imagine > a style which prescribes different sizes for subscripts, depending if a > lowercase letter is subscripted or a capital one. Since I have not tried > it, I don't know how difficult to achieve this might be. I would say, this is an important observation, but a general solution would be very difficult because of the compromises involved. If you make the capital letters smaller in subscripts, then what do you do if the subscript contains a combination `Aa'? Now the decreased `A' maybe looks too small next to the small `a'. In general this would apply to all combinations of capital letter + something else in a subscript. Also, consider what happens with letters like C or Z where the lowercase form and the uppercase form are similar: how do you distinguish if a subscript C or Z is lowercase or uppercase, after the capital letters are made smaller? Michael Downes mjd@math.ams.org (Internet)

**References**:**Capital subscript are too large***From:*J%org Knappen <Joerg.Knappen@uni-mainz.de>

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