From ConTeXt wiki

\lohi, \hilo


\lohi[...]{...}{...}, or \hilo[...]{...}{...}
[...] left
{...} text
{...} text


Place a subscript and a superscript above it, instead of one after the other. \lohi expects the subscript first; \hilo is simply a wrapper around \lohi that expects the superscript first. You can provide an optional keyword left, in which case the super- and subscript will be right-aligned to permit placement at the left of a word.


Today is the 3\high{rd} March 2010.\par
The lethal concentration L\low{50} varies with the temperature.\par 
One stable isotope of tantalum is \lohi[left]{73}{180m}Ta.

See also

Help from ConTeXt-Mailinglist/Forum

All issues with: