What ⫼ means
⫼ in a formula marks a large operation between expressions. It is often n-ary, meaning one operation takes several inputs.
In mathematical layout, it receives large-operator spacing; a plain text font can render it at a fixed height.
Why are ⫴ and ⦀ different?
Operators go between elements; delimiters go around them.
Unicode’s mathematical guidance groups ⫴ with operators and distinguishes ⦀ as a delimiter. ⫴ is the binary relation, while ⫼ is the large, often n-ary operator; ⦀ surrounds material.
Specialist mathematical notation; it reads as formula structure, not conversational emphasis.
Using ⦀, the fence around material, in place of ⫼ changes an operator into a delimiter.
Don't confuse it with
1Questions people ask
1Why does ⫼ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type ⫼
⫼\2AFCCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
