Re: [NTG-context] Nolimits not working with Unicode characters

On 14 May 2016, at 23:26, Aditya Mahajan wrote:

Be careful with empty group in math mode:

\startformula{} -a \stopformula \startformula\relax -a \stopformula

Maybe a way to distinguish between unary prefix operator “-“, and binary infix operator “-“: {} is interpreted as an empty operand, thus infix “-", whereas \relax is removed from the input meaning no operand, so prefix “-“. But \relax can have sub-/super-scripts, just as {}, and then in both cases, “–“ becomes binary: \startformula {}^2 - a \stopformula \startformula \relax^2 - a \stopformula