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⫨

short up tack with underbar

Short Up Tack With Underbar

⫨ is a mathematical operator written between the expressions it relates; the notation using it must define its exact operation. It is related to the up tack and to , the “down tack underbar” symbol from the APL programming language; that connection does not by itself show the marks mean the same thing.

Text symbol

What ⫨ means

Read it as an operator whose exact rule comes from its notation.

It is an infix operator: it is written between the expressions it acts on. That placement does not specify one universal operation; the notation using ⫨ must define the rule.

Questions people ask

1

Why 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 or find ⫨

Search it as: ⫨ operator · ⫨ math symbol · APL tack underbar
Shows up in: Anything that takes text · its shape is whatever your font draws

Windows (Word)

⎇Alt+XType 2AE8, then AltX 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 “short up tack with underbar”.

Linux

⎈Ctrl+⇧Shift+UType 2ae8, then Enter or Space.

HTML

⫨

CSS

\2AE8

Codes and encoding1 code points

HTML decimal

⫨

HTML hex

⫨

CSS content

content: "\2AE8";

Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.

URL encoded

%E2%AB%A8

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.

Families this belongs to

1

Maths & numbers1,835 symbols

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