I try to avoid hyphen-based range notation. It's sometimes hard to tell if a single hyphen was intended to be a minus sign. Double hyphens look like ASCII em-da

I try to avoid hyphen-based range notation. It's sometimes hard to tell if a single hyphen was intended to be a minus sign. Double hyphens look like ASCII em-dashes. I've never heard of of the triple convention and would be confused if you neglected an inline explanation. Here are some alternatives: * English: from 1 to 3 * Some programming languages: 1..3 * Math: [1, 3) I guess this also the main purpose of the en-dash* : http://www.thepunctuationguide.com/en-dash.html http://www.thepunctuationguide.com/en-dash.html . The problem there is that en-dashes can be inaccessible as in my case--typing on a phone. * I actually originally missed your point because you forgot the hyphen between 'en' and 'dash'.