[luatex] Unicode-math strange results

Ulrik Vieth ulrik.vieth at arcor.de
Sun Jun 6 22:55:13 CEST 2010


Hi all,

I've doing some testing and found a couple of strange issues,
which might be engine-related rather than macro-related.

I have been running my tests using the following versions:

- fontspec, unicode-math, luaotfload from CTAN (today)
- luatex and xetex binaries from context-minimals

luatex --version
This is LuaTeX, Version beta-0.60.1-2010042811

xetex --version
XeTeX 3.1415926-2.2-0.9995.2 (Web2C 7.5.6)

I have found the following problems:

1. Delimiters:
With xelatex, \left and \right delimiters do not grow.
\big, \Big, \bigg, \Bigg produce only the default size.
With lualatex, delimiters are fine (no problem).

2. Radicals:
With xelatex, I only get a radical sign without a bar.
With lualatex, I get a misplaced radical sign with a very thick bar.
(The radical sign should hang below the baseline, but doesn't.)

Enclosed is a zip file with all test sources and log files.

Regards, Ulrik

P.S: Sorry, for cross-posting, but I wasn't sure,
if everyone was following the unimath group.
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