From: Hans Hagen <pragma@wxs.nl>
To: Aditya Mahajan <adityam@umich.edu>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Boguslaw Jackowski <b_jackowski@gust.org.pl>
Subject: Re: math: ± and ∓ are shifted
Date: Fri, 05 Apr 2013 00:55:40 +0200 [thread overview]
Message-ID: <515E04EC.3010600@wxs.nl> (raw)
In-Reply-To: <alpine.LNX.2.02.1304041808280.26849@ybpnyubfg.ybpnyqbznva>
On 4/5/2013 12:13 AM, Aditya Mahajan wrote:
> On Fri, 5 Apr 2013, Hans Hagen wrote:
>
>> On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
>>> On Thu, 4 Apr 2013, Xenia wrote:
>>>
>>>> Hi context list,
>>>>
>>>> I noticed that the ∓ sign is a little higher than the ± sign, so that
>>>> the + signs are at the same height. But this looks strange and
>>>> should be
>>>> changed.
>>>
>>> Indeed. These look very odd. I tested this with cambria and the outcome
>>> is similar, so this is not a font bug, but something wrong in ConTeXt's
>>> math handling.
>>
>> I'm not sure if I understand the issue
>>
>> - lm has + and - touching with the + in the same position as the
>> regular +
>>
>> - cambria has a gap between + and - and moves the + up and down
>>
>> Afaik context isn't doing any magic here as these are precomposed
>> glyphs that directly map.
>>
>> $a \ruledhbox{$+$} b \ruledhbox{$-$} c$
>>
>> $a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
>>
>> they are 'binary' in math mode, just like + and -
>
> The question is not about the shape of the glyph, but their location.
> But after looking at the output of latex for CM and Cambria, I am no
> longer sure what the correct output should be. For Cambria, ConTeXt and
> LaTeX give similar outputs. For CM/LM they give different outputs.
it looks like the open type version has a fitting boundingbox while the
type 1 variants have a bit of the + sticking out:
\starttext
$x \ruledhbox{$\pm$} x \ruledhbox{$\mp$} x$
\stoptext
Hans
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next prev parent reply other threads:[~2013-04-04 22:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-04 21:36 Xenia
2013-04-04 21:44 ` Aditya Mahajan
2013-04-04 22:06 ` Hans Hagen
2013-04-04 22:13 ` Aditya Mahajan
2013-04-04 22:55 ` Hans Hagen [this message]
2013-04-05 0:16 ` Khaled Hosny
2013-04-05 7:32 ` Hans Hagen
2013-04-05 13:46 ` Hans Hagen
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