ERROR-BARRED BLACK DIAMOND·U+29F1

Character Information

Code Point
U+29F1
HEX
29F1
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 A7 B1
11100010 10100111 10110001
UTF16 (big Endian)
29 F1
00101001 11110001
UTF16 (little Endian)
F1 29
11110001 00101001
UTF32 (big Endian)
00 00 29 F1
00000000 00000000 00101001 11110001
UTF32 (little Endian)
F1 29 00 00
11110001 00101001 00000000 00000000
HTML Entity
⧱
URI Encoded
%E2%A7%B1

Description

U+29F1 is the Unicode character code for the "ERROR-BARRED BLACK DIAMOND." This symbol is primarily used in digital text to indicate an error or a point of interruption. It serves as a visual cue that there has been a misstep, inconsistency, or discontinuity in a sequence. Although not culturally specific or language-dependent, it is particularly useful in technical and programming contexts for signifying errors or breakpoints during debugging processes. In such scenarios, the Error-Barred Black Diamond helps developers quickly identify problematic sections of code, facilitating troubleshooting and improving overall efficiency. Its distinct diamond shape, combined with a diagonal bar through its center, makes it easily distinguishable from other characters and symbols in text, further enhancing its utility as an error indicator.

How to type the symbol on Windows

Hold Alt and type 10737 on the numpad. Or use Character Map.

  1. Step 1: Determine the UTF-8 encoding bit layout

    The character has the Unicode code point U+29F1. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of 0x0800 to 0xffff.

    Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format: 1110xxxx 10xxxxxx 10xxxxxx
    Where the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+29F1 to binary: 00101001 11110001. Those are the payload bits.

  3. Step 3: Fill in the bits to match the bit pattern:

    Obtain the final bytes by arranging the paylod bits to match the bit layout:
    11100010 10100111 10110001