[XeTeX] Triangles

[Will Robertson]

On 20/10/2009, at 12:38 AM, Barbara Beeton wrote:

> they are the same glyph, differing only
> in the class; \triangle is "ord", while
> \bigtriangleup is a binary operator.
> i chose the name \bigtriangleup rather
> then \triangle for the stix collection
> since it is a pair with \bigtriangledown.
>
> although the utc has softened its stance
> on multiple codes with the same shape,
> i'm not sure that it has softened this


Well, there are certainly counter-examples (or so it seems to me)  
with, e.g., U+2A1F and U+2A3E which both are "z notation composition"  
but with difference classes (i.e., uses). Note that I knew about this  
notation before looking at how it's typeset, so I might be missing  
something important here. No matter.

I feel a little lost in this big table, but I hope to find my way.  
Most of it is falling into place now.

-- Will