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U+29EF · Miscellaneous Mathematical Symbols-B

Error-Barred Black Square ⧯

Error-Barred Black Square is the Unicode character U+29EF (official name “ERROR-BARRED BLACK SQUARE”) from the Miscellaneous Mathematical Symbols-B block. It belongs to SymbolHero’s math symbols collection. Copy it with the button, or use the codes and keyboard methods below to type it yourself.

UnicodeU+29EF
HTML⧯
⧯U+29EF

Character codes

Unicode code pointU+29EF
Decimal10735
HTML (hex)⧯
HTML (decimal)⧯
CSS\29EF
JavaScript\u29EF
Python\u29EF
UTF-8 bytesE2 A7 AF
UTF-1629EF
URL-encoded%E2%A7%AF

Character details

Official nameERROR-BARRED BLACK SQUARE
Unicode blockMiscellaneous Mathematical Symbols-B
General categoryMath Symbol (Sm)
SymbolHero categoryMath Symbols
EmojiNo

How to type ⧯

Windows

  • In Microsoft Word or Outlook: type 29EF then press Alt + X.
  • Open Character Map (search “Character Map” in Start), tick “Advanced view”, search for “error-barred black square”, then Select and Copy.

Mac

  • Press Control + Command + Space to open the Character Viewer, search “error-barred black square”, and double-click the result.
  • With the Unicode Hex Input keyboard enabled (System Settings → Keyboard → Input Sources), hold Option and type 29EF.

iPhone & Android

  • Tap Copy at the top of this page, then long-press where you want it and choose Paste.

Docs & web

  • Google Docs: Insert → Special characters, then search “error-barred black square” or enter U+29EF.
  • HTML: ⧯
  • Excel / Google Sheets: =UNICHAR(10735)

Similar math symbols

Square with Contoured Outline
Increases As
Shuffle Product
Equals Sign and Slanted Parallel
Equals Sign and Slanted Parallel with Tilde Above
Identical to and Slanted Parallel
Gleich Stark
Thermodynamic
Down-Pointing Triangle with Left Half Black
Down-Pointing Triangle with Right Half Black
Black Lozenge
Error-Barred White Square
Error-Barred White Diamond
Error-Barred Black Diamond
Error-Barred White Circle
Error-Barred Black Circle
Rule-Delayed
Reverse Solidus Operator
Solidus with Overbar
Reverse Solidus with Horizontal Stroke
Big Solidus
Big Reverse Solidus
Double Plus
Triple Plus

See all 714 math symbols →

Questions

What is the Unicode for ⧯?

It is U+29EF (ERROR-BARRED BLACK SQUARE), decimal 10735.

Is there a Windows Alt code for it?

No standard Alt code exists for this character. In Word type 29EF then Alt+X, or copy it from this page.

How do I type it on a Mac?

There is no built-in Option shortcut. Use the Character Viewer (Control + Command + Space) and search “error-barred black square”, or copy it from this page.

What is the HTML code?

Use the numeric reference ⧯ (or ⧯). There is no named entity.