Re: \not\in doesn't work properly

From: Otared Kavian <otared@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: \not\in doesn't work properly
Date: Mon, 3 Dec 2012 22:26:43 +0100	[thread overview]
Message-ID: <2CBE8A79-35CE-4075-B422-2D84D01ACAFB@gmail.com> (raw)
In-Reply-To: <50BD068F.2050308@wxs.nl>

Hi Hans, Hi Jeong Dal,

On November 21st I reported this issue and others with the new versions of mkiv where math characters are treated with a new method.
Indeed the issue appears with Latin Modern and their new implementation.
However with some fonts the behaviour is correct but the size of some signs (such as \int, \sum, \prod) is incorrect even with those fonts.

As I understood it if one adds 
\enablemode[lmmath]
at the beginning of the file then mkiv uses the good old implementation, at least when using Latin Modern.
The minimal test file is this:
%%%%%%% begin bug-lm.tex
\starttext
The commands \type{\imply} is not anymore defined.

\type{\iff}, \type{\Longrightarrow}, \type{\mapsto} and some other arrows do not appear.

\startformula
(\pi \notin {\Bbb Q} \Longrightarrow \pi^2 + \pi \not\in {\Bbb Q}) \iff \pi^2 \not\in {\Bbb Q}
\stopformula

\startformula
x \mapsto ax+b
\stopformula
\stoptext
%%%%%%% end bug-lm.tex

and the PDF output is attached to my previous message.

Best regards: OK

On 3 déc. 2012, at 21:07, Hans Hagen <pragma@wxs.nl> wrote:

> On 11/30/2012 10:26 AM, Jeong Dal wrote:
>> Hi,
>> 
>> After updating ConTeXt, math command '\not\in' is not shown properly.
>> 
>> For example,
>> 
>> $a \not\eq b$ is good.
>> 
>> but $a \not\in A$ shows two symbols separately.
>> 
>> 
>> I am using Mac OS X 10.8 and the versions of LuaTex and ConTeXt are
>> 
>> This is LuaTeX, Version beta-0.70.2-2012052309 (TeX Live 2012)
>> ConTeXt ver: 2012.11.23 17:35 MKIV fmt: 2012.11.26 int: english/english
> 
> I assume that you use lm ... before I start looking into it I'd like to know Khaleds point of view on this.
> 
> Hans
> 
> 
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