15 Apr
2014
15 Apr
'14
12:12 p.m.
Hans Hagen
So \triangle is a math ord and \bigtriangleup a math bin.
For compatibility, that should probably stay true in ConTeXt too---even the low placement of \bigtriangledown, which I don't understand but which does reproduce plain TeX's placement.
why? if compatibility means 'not useable' we should fix it
Thus, a question for the purer mathematicians on the list: Are there uses for the lower placement of \bigtriangledown? As a physicists, I have used that shape only for the gradient operator (for which one has \nabla). But maybe it is used in, say, category theory with a lower placement? -Sanjoy