On Fri, Mar 11, 2011 at 10:14, Ian Lawrence <physics.roo...@gmail.com> wrote: > Morning all, > I have a need to write a lot of physical quantities - these should be > in text mode. Mostly I can manage, but subscripts are causing me grief > > Eg > \startformula > \startmathalignment[n=3] > \NC \text{F}\NC =\NC {\text{GMm} \over \text r^2}\NR > \NC \text {force}_G \NC =\NC {\text{G} \times \text m_1 \times \text > m_2 \over \text r^2}\NR > \NC \text {force \low G} \NC =\NC {\text{G} \times \text m_1 \times > \text m_2 \over \text r^2}\NR > \stopmathalignment > \stopformula > > In the second and third equantions I'd like force subscript G all in > roman, not italic, to follow the standard conventin. > The first one puts the G in the correct place, but in italic > The second one manages roman, but it's offset.
Is this ok? \text{force}_{\rm G} (or \text{force}_{\text{G}}) With \rm you stay in math mode, but use roman. You should not use \rm for "force" since you would get mathematical spacing instead of proper kerning. > \startformula > {\forceQA \over \massQA} = \accelerationQA > \stopformula Try to use \frac{}{} instead of \over. There are discussions about disabling \over in luatex (or at least in MKIV). Mojca ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________