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[Sam Liddicott <address@hidden>]

I'm trying to use resize to increase the bounding box to the next 
multiple of 1fn

<assign|booked|<macro|x|<boxit|<resize|<arg|x><minus|1w|2fn|0fn>-<mod|1w|1fn>|-0fn||<minus|1w|2fn|0fn>|>>>>

In the example above I've included the calculation in the body so that I 
can see what goes on.
It seems that <mod|1w|1fn> isn't allowed, and in fact that plus and 
minus on tmlen's makes a longer tuple anyway...

Anyone know a way to achieve what I'm trying to do?

Sam