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Message-ID:  <923BD580-4274-4F85-8FCB-FC7A8E416B59@wspr.io>
Date:         Mon, 29 Apr 2019 00:15:19 +0930
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              <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
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From:         Will Robertson <will@WSPR.IO>
Subject: Re: unicode-math and amsmath
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Hi Reinhard,

Thanks for the detailed report.

I’m afraid this issue has been logged in the past (albeit relatively recently) and I haven’t had the time to look into it properly. It certainly needs to be addressed. See: https://github.com/wspr/unicode-math/issues/497

Regarding the loading order, I have even thought that unicode-math should load amsmath automatically, but I shy away from present unicode-math as a one-stop-shop. I’ll revisit whether I can force a more explicit warning or error, even if it’s via changes to amsmath.sty itself.

Thanks also for the invite to BachoTeX — I would truly love to go, I just need to line it up one year with some additional conference travel to make it worth the lengthy trip. (It looks like Adelaide to Bydgoszcz is 2 or 3 stops and 30+ hrs travel time…)

Regards,
Will


> On 28 Apr 2019, at 2:23 pm, Reinhard Kotucha <reinhard.kotucha@WEB.DE> wrote:
> 
> Hello Will,
> when I load unicode-math after amsmath, the amsmath option intlimits
> has no effect any more.  The options sumlimits and namelimits still
> work as expected.
> 
>  \documentclass{article}
>  \usepackage[intlimits,sumlimits,namelimits]{amsmath}
>  \usepackage{unicode-math}
> 
>  \begin{document}
>    \[ \int_{0}^{1} \]
>    \[ \sum_{i=0}^{1} \]
>    \[ \lim_{x\to\infty} \]
>  \end{document}
> 
> Even worse, when I reverse the order (loading unicode-math first), the
> operator \lim is printed in italics.  This is so strange that I can't
> believe it.  Can anybody confirm this behavior?
> 
> I tested with both, lualatex and xelatex and TeX Live 2012, 2013,..,2019.
> Same result, as expected.
> 
> The above is a minimal example.  When unicode-math is loaded first I
> only get a warning "Package amsmath Warning: Unable to redefine math
> accent \mathring.".  But when I use other fonts like TeX Gyre Pagella
> with fontspec and texgyrepagella-math.otf with unicode-math, I get
> zillions of error messages about already defined control sequences.
> 
> Thus I suppose that amsmath has to be loaded before unicode-math
> unconditionally.  If this assumption is true it would be better if
> amsmath aborts with a meaningful error message if it detects an
> already loaded unicode-math.
> 
> I'm aware that not all dependency issues can be resolved this way.
> ATM there are 180,000 files in TeX Live, three times more than ten
> years ago and the number is steadily growing.  But if only the LaTeX
> core packages complain when loaded in an inappropriate order, that
> would be a great advantage.
> 
> I'll meet Frank next week at the BachoTeX conference in Poland.
> 
> Will, did you ever consider to attend this amazing conferece?  Though
> it's [officially] the conference of the Polish TeX User Group, it's
> quite international.  In the past it was attended by people from
> innumerable European countries, Japan, America, and Australia.  The
> conference site (in a nature sanctuary) is an ideal place where
> families with [little] children can relax.  BachoTeX even offers
> workshops which little kids can attend.
> 
> See
>  http://www.gust.org.pl/bachotex/bachotex-promo/bachotex-1920x1080.pdf
> 
> If you didn't register already, I really hope to meet you there next
> year.
> 
> Regards,
>  Reinhard
> 
> --
> ------------------------------------------------------------------
> Reinhard Kotucha                            Phone: +49-511-3373112
> Marschnerstr. 25
> D-30167 Hannover                    mailto:reinhard.kotucha@web.de
> ------------------------------------------------------------------