Hans Åberg
29. September 2016 um 15:04
The example below compiles with latest ConTeXt, suggesting that the Unicode quadruple symbol ⨌ has not been registered as a math symbol, as the command it is set to is ignored.
You have to extend the entry for ⨌ (0x test 2A0C) in char-def.lua to create the \iiiint command.