<html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> I'm planning on writing a scientific calculator application - this involves laying out maths in a way similar to TeX (XeTeX, LaTeX, etc.) and mathml in Mozilla Firefox. Initially I looked towards FreeType to render the glyphs in the Mathematical Operators unicode block - but this is not enough to provide good looking typography because some glyphs need to be altered - e.g. the line on a square root sign must extend over it's operands. I then learned that I could use the MATH Advanced Typographic Tables found in the OpenType format (section 6.3.6.2 of the spec - found <a href="http://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-isoiec-cd-14496-22-3rd-edition">here</a>) to draw mathematical glyphs correctly. As far as I can tell, FreeType does not support reading the MATH tables of OpenType fonts. Is there any way that HarfBuzz can help me in laying out maths? My expectation is no - because my understanding is that harfbuzz is for layout (or "shaping"?) and not for loading glyphs. If I am correct in saying HarfBuzz cannot help, then do you have any advice in where I should look to next? Thanks in advance, Elliot Potts. (PS this is the second time I've sent this in because now I'm a member of the mailing list) </body> </html>