What ⧽ means
It marks the right boundary of a mathematical expression.
Its matching opening bracket is ⧼. Together they delimit a span; the expression inside and its context determine the mathematical meaning.
How did ⧽'s name change?
A 2001 standards review added hyphens to both bracket names.
The change matched the hyphenated naming pattern already used for other mathematical symbols.
Don't confuse it with
4Questions 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 ⧽
⧽\29FDCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
