Re: [NTG-context] Math literal colon

On 20 Jul 2015, at 21:34, Manuel Blanco wrote:

The definition of a coordinate separator should be with \mathpunct, although it doesn't look particularly good, so may be better to use no space at all (as commented in other mails).

In the case of \ratio, since it's a binary operator, it should be \mathbin; but may be that's too much space and tighter spacing would be better.

Strictly speaking, the coordinate separator : for homogeneous coordinates is a ration symbol, and a book in algebraic used that. So may be simplest to only do the operator : along with the function and set :.