What ⟞ means
Not automatically; the notation decides whether the two can be swapped.
Unicode cross-references ⟞ to the shorter left tack ⊣. That identifies a named relationship, not a universal formula definition; follow the convention stated for the expression.
Why can ⟞ appear as ⟝?
Unicode pairs it with ⟝ for bidirectional mirroring.
In right-to-left text, layout that applies Unicode’s mirroring rule can display the long right tack ⟝. The underlying character remains ⟞.
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 ⟞
Windows (Word)
Alt+XType 27DE, then Alt+X to get ⟞.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “long left tack”.
Linux
Ctrl+Shift+UType 27de, then Enter or Space.
HTML
⟞CSS
\27DECodes and encoding1 code points
HTML decimal
⟞
HTML hex
⟞
CSS content
content: "\27DE";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%9F%9E
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.