using · in math mode

using · in math mode

[Paul Menzel]

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Dear ConTeXt folks,


I am using the Neo keyboard layout [1], which enables me to directly
enter several UTF-8 characters.

The dot »·« is one of those characters [2] and I like to use it in math
mode instead of `\cdot`.

But in math mode it is some kind of bold lower dot (see attachment) and
not ·. In works fine “text mode”.

        \starttext
        $a · b = a \cdot \text{ (\\cdot) } b = ab$
        
        in text ·
        \stoptext

Is the wrong UTF-8 character used or can ConTeXt be adapted to use »·«
as would like to?


Thanks,

Paul


[1] http://www.neo-layout.org/
[2] http://wiki.neo-layout.org/browser/A-REFERENZ-A/neo20.txt#L225

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\starttext
$a · b = a \cdot \text{ (\\cdot) } b = ab$

in text ·
\stoptext

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Re: using · in math mode

[Aditya Mahajan]

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On Mon, 14 Feb 2011, Paul Menzel wrote:

> Dear ConTeXt folks,
>
>
> I am using the Neo keyboard layout [1], which enables me to directly
> enter several UTF-8 characters.
>
> The dot »·« is one of those characters [2] and I like to use it in math
> mode instead of `\cdot`.
>
> But in math mode it is some kind of bold lower dot (see attachment) and
> not ·. In works fine “text mode”.
>
>        \starttext
>        $a · b = a \cdot \text{ (\\cdot) } b = ab$
>
>        in text ·
>        \stoptext
>
> Is the wrong UTF-8 character used or can ConTeXt be adapted to use »·«
> as would like to?

The dot that you have entered is 0x00B7 which is periodcentered. The cdot 
maps to 22C5.

Everything works fine if you use a unicode math font (cambria or xits). In 
LM, there is a bug in the mappings. For some reason 00B7 is mapped to 
squaresmallsolid in tex-ma. I need to check why that definition is there 
before determining how to fix it (which is relatively easy).

OT: Is there a timeline for LM OpenType Math?

Aditya

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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: using · in math mode

[Hans Hagen]

On 15-2-2011 12:07, Aditya Mahajan wrote:
> On Mon, 14 Feb 2011, Paul Menzel wrote:
>
>> Dear ConTeXt folks,
>>
>>
>> I am using the Neo keyboard layout [1], which enables me to directly
>> enter several UTF-8 characters.
>>
>> The dot »·« is one of those characters [2] and I like to use it in math
>> mode instead of `\cdot`.
>>
>> But in math mode it is some kind of bold lower dot (see attachment) and
>> not ·. In works fine “text mode”.
>>
>> \starttext
>> $a · b = a \cdot \text{ (\\cdot) } b = ab$
>>
>> in text ·
>> \stoptext
>>
>> Is the wrong UTF-8 character used or can ConTeXt be adapted to use »·«
>> as would like to?
>
> The dot that you have entered is 0x00B7 which is periodcentered. The
> cdot maps to 22C5.
>
> Everything works fine if you use a unicode math font (cambria or xits).
> In LM, there is a bug in the mappings. For some reason 00B7 is mapped to
> squaresmallsolid in tex-ma. I need to check why that definition is there
> before determining how to fix it (which is relatively easy).

ok

> OT: Is there a timeline for LM OpenType Math?

an elastic one -)

and even than, we will keep the virtual ones around as we also use them 
for torture testing that mechanism

Hans

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___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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