> Am 27.04.2015 um 15:23 schrieb Aditya Mahajan <adityam@umich.edu>:
> 
> On Mon, 27 Apr 2015, Hans Hagen wrote:
> 
>> On 4/27/2015 11:24 AM, Aditya Mahajan wrote:
>>> Hi,
>>> 
>>> How does one change the numberconversion for math formulas? The old method:
>>> 
>>> \setupformulas[numberconversion=set 1]
>>> \starttext
>>> \placeformula
>>> \startformula
>>>   E = mc^2
>>> \stopformula
>>> \stoptext
>>> 
>>> does not appear to work.
>> 
>> \setupcounter[formula][numberconversion=set 1]
> 
> Using `characters` as numberconversion works, but `set 1` does not.

Your original example with \setupformulas[numberconversion=set 1] works for me.

Wolfgang