On 4/13/2014 4:44 AM, Sanjoy Mahajan wrote:
Otared Kavian <ota...@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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