Re: \triangledown placed too low in Palatino

[Hans Hagen <pragma@wxs.nl>]

On 4/13/2014 4:44 AM, Sanjoy Mahajan wrote:
> Otared Kavian <otared@gmail.com> writes:
>
>> The \triangle operator is used for instance in the « symmetric
>> difference » of two subsets
>
> Ah, good to learn something about pure mathematics.  In my mathematics
> degree, my tutor said, "You are very good at the applied material,"
> which was not meant as a compliment.
>
> So \triangle should be a \mathop rather than a \mathord?  Right now, as
> Aditya pointed out, it's a \mathord ("ordinary"), in contrast to
> \bigtriangleup, which is the same character but typeset as a binary
> operator ("binary"). From char-def.lua :
>
>   [0x25B3]={
>    adobename="whiteuppointingtriangle",
>    category="so",
>    cjkwd="a",
>    description="WHITE UP-POINTING TRIANGLE",
>    direction="on",
>    linebreak="ai",
>    mathspec={
>     {
>      class="ordinary",
>      name="triangle",
>     },
>     {
>      class="binary",
>      name="bigtriangleup",
>     },
>    },
>    unicodeslot=0x25B3,
>   },

I can change things but will only do that when all you mathematicians 
have some agreement about it ...

Btw, it is still on my agenda to provide a mechanism for switching 
between math dictionaries (i.e. group symbols in group swith i fneeded 
different properties) so that one can switch between logic, statistics, 
streetfighting or whatever math.

Hans

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