This is a recurrent problem for me, and I think it's for other as well. Certainly someone has already discussed this issue in this list (or in the devel list), but every time I take some time to browse through them, I cannot find it, or perhaps I'm not sufficiently knowledgeable on the internal working of LyX to really identify the subject...
Anyway, whenever I'm editing a mathematical equation and have a need for a symbol not included in the standard latex and AMStex sets, I have to look for it elsewhere. A good place to look for new symbols is the 'The Comprehensive LaTeX Symbol List' http://mirror.ctan.org/info/symbols/comprehensive/symbols-a4.pdf So, if I want the "\partialslash" symbol, I have to edit the preamble and insert "\usepackage{mathabx}". If I want the double square bracket delimiters "\ldbrack" and "\rdbrack", I have to \usepackage{txfonts}, and so forth. It works fine to generate the exported document in PDF or PS and also with Instant Preview. However, the math equation editor (or math mode) does not render non-AMS/latex symbols, but leaves them as ERT's. That's ok if you are creating a document with LyX, but for those of us that use LyX to make mathematical calculations as well, the rendition of all symbols goes a long way to facilitate the visualization of the mathematical expression. So I ask you LyXperts: is it possible to configure the math mode editor so that it uses also mathabx and other different math fonts? The roadmap to LyX 2.1 mentions enhanced support for math font selection (OpenType fonts) and support ofr cropped PDF/EPS. However, AFAIU, these enhancements will have an effect on IP and on the exported document. Seems to me that the math editor will still use the same screen fonts. Or am I wrong? -- Rudi Gaelzer Institute of Physics Federal University of Rio Grande do Sul BRAZIL Registered linux user # 153741
