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Re: radical thoughts

> So this is perhaps the best we can achieve...
> Would it be possible to have radical in a non-TeX position and
> specify the information needed to shift it to a TeX position in 
> an additional fontdimension so that the virtual font for TeX could
> be generated automatically ? 

Can't you determine this automatically by taking the difference
of the actual height and the required height in the TeX position,
i.e. the default rule_thickness?   I believe the mtx files in 
mathptm (CTAN:fonts/tools/mathptm) already have some (obsolete)
code like this to deal with the radical sign from Adobe symbol, 
which isn't acutally used since radicals and delimiters are taken
from CM to ensure consistency with big and extensible sizes.

Cheers, Ulrik.