[OS X TeX] Change font size in mathmode

[Ralph Martin]

I have a horrid large matrix which I really want to go on one line in a 
displayed equation. I put \small at the start of the equation, and this 
did what I wanted but I got a warning that \small is invalid in 
mathmode.

What is the proper way of forcing a smaller textsize in mathmode?

If you use \scriptstyle, you can't just put that round the whole array, 
which is very tedious...

Thanks

Ralph
--
Prof Ralph Martin                   Phone: +44(0)29 2087 5536
School of Computer Science          Fax:   +44(0)29 2087 4598
Cardiff University                  Email: mailto:ralph at cs.cf.ac.uk
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