How to use unicode character as binary operator?

Question

I am trying to use the unicode character ⦡ (U+29A1) as a binary operator. I almost got it to work using the following:

\usepackage{fontspec}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{unicode-math}
\setmathfont{Symbola}

\newcommand{\ang}{\mathbin{⦡}}

Example: $x\ang y$ works great.

Problem: $\mathbb{R}^n$ looks weird.

As indicated, the issue is the side-effect on exponents. Any tips?

EDIT

Issue is almost fixed, but I can't help but notice this weird placement of the n:

New settings:

Default amssymb:

Admittedly now I'm getting obsessive.

Answer 1

Set the math font for that one symbol only, not all math symbols. As Symbola has no OpenType math table, math layout will break in many ways. The following should work:

\setmathfont{Latin Modern Math} % Or your math font of choice
\setmathfont{Symbola}[range=\sphericalangleup,
                      Scale=MatchUppercase]

\newcommand{\ang}{\mathbin{\sphericalangleup}}

The unicode-math package declares U+29A1 as \sphericalangleup, but gives it \mathord spacing. The default math font does not have it, but some math fonts that do are: XITS Math, STIX Two Math, Fira Math and New Computer Modern Math. The albatross command can give you a complete list. Usually, if you want to stick with a clone of Computer Modern, New Computer Modern is your best bet. So,

% Load amsmath, fontspec, unicode-math, etc. first if they need
% special options.

\usepackage{newcomputermodern} % Add [regular] for the original weight

\newcommand{\ang}{\mathbin{\sphericalangleup}}