» I think that your "textual digits" only arise in the absence of proper » markup, just as it is common to have other symbols sprayed into the text, » in the absence of a proper symbol environments. of course not. §~2.3 has nothing to do with maths, neither p.~12312. Up to some extent, I personnally consider that _units_ are not maths (you can write : I drive my car 3 miles or 12 km; this is text, it would get italised if the context tells so, etc.) The \textmu in µm is also a textual object. (I would use \text{\normalfont µm} in a math equation). Thierry Bouche __ « Ils vivent pour vivre, et nous, hélas ! nous vivons pour savoir. » Charles Baudelaire, Paris.