Hi Hans

thanks for the checker, that surely helps. So I could find a solution
(perhaps not the best) for my problem:

\m{T_{\text{½}}}

Thanks again
Christian



2015-04-17 23:51 GMT+02:00 Hans Hagen <pragma@wxs.nl>:

> On 4/17/2015 9:41 PM, Christian Prim wrote:
>
>> Hi
>>
>> a year or so before one could simply typeset the physical half-life as
>> shown in MWE:
>>
>> \usetypescript[palatino]
>> \setupbodyfont[palatino]
>> \starttext
>>      ½ α
>>      \m{T_α}
>>      \m{T_½}
>> \stoptext
>>
>> The greek letter is just to show, that utf-8 works as expected. In
>> actual beta (and probably longer before) this doesn't work anymore. What
>> have I missed?
>>
>
> Are you sure? palatino doesn't have that character in its math repertoire
> (it might have been present in the alternative that uses px fonts combined
> with a pagella text font in which case they're coming from text). The math
> subsystem of context does to some extend accept super and subscript
> characters but not (at least not now) these fractions. Is this really
> needed? It can be done but quite some extra overhead for bad practice.
>
> Anyway, I've added a checker so that at least it gets reported (assuming
> the use of one math collection):
>
> mkiv lua stats  > unknown math characters: ½ (U+000BD) (n=3)
>
> Hans
>
>
>
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