IDENTICAL TO·U+2261

Character Information

Code Point
U+2261
HEX
2261
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 89 A1
11100010 10001001 10100001
UTF16 (big Endian)
22 61
00100010 01100001
UTF16 (little Endian)
61 22
01100001 00100010
UTF32 (big Endian)
00 00 22 61
00000000 00000000 00100010 01100001
UTF32 (little Endian)
61 22 00 00
01100001 00100010 00000000 00000000
HTML Entity
≡
URI Encoded
%E2%89%A1

Description

The Unicode character U+2261 is known as the "IDENTICAL TO" symbol. This mathematical symbol represents an equivalence relation, indicating that two objects are identical. It is used in digital text primarily within the field of mathematics, particularly in algebra and set theory, to express a relationship between two elements where they have the same value or properties. The character can also be found in programming languages and software applications where it serves as a comparison operator to check if two values are equal. Despite being less common, U+2261 may also appear in linguistic contexts, such as in the transcription of non-Latin scripts, to signify phonetic identity between words or phrases. While not widely recognized outside of specialized domains, the "IDENTICAL TO" symbol plays a crucial role in ensuring accuracy and precision within its specific areas of application.

How to type the symbol on Windows

Hold Alt and type 8801 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+2261. 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+2261 to binary: 00100010 01100001. 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 10001001 10100001