SMALL ELEMENT OF·U+220A

Character Information

Code Point
U+220A
HEX
220A
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 88 8A
11100010 10001000 10001010
UTF16 (big Endian)
22 0A
00100010 00001010
UTF16 (little Endian)
0A 22
00001010 00100010
UTF32 (big Endian)
00 00 22 0A
00000000 00000000 00100010 00001010
UTF32 (little Endian)
0A 22 00 00
00001010 00100010 00000000 00000000
HTML Entity
∊
URI Encoded
%E2%88%8A

Description

The Unicode character U+220A, commonly known as the Small Element of Set Builder (∩), plays a significant role in digital text by representing the mathematical intersection symbol. This operator is widely used in set theory, where it denotes the common elements between two or more sets. The Small Element of Set Builder is not only crucial for academic and scientific fields such as mathematics, computer science, and statistics but also finds applications in various other domains like engineering, economics, and social sciences. Its compact representation allows users to express complex set-theoretic relationships concisely, enhancing the readability and accessibility of technical documents.

How to type the symbol on Windows

Hold Alt and type 8714 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+220A. 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+220A to binary: 00100010 00001010. 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 10001000 10001010