Step 1: Determine the UTF-8 encoding bit layout
The character ∩ has the Unicode code point U+2229. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
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 thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+2229 to binary:
00100010 00101001. Those are the payload bits.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 10101001
INTERSECTION·U+2229
∩
Character Information
Code Point
U+2229
HEX
2229
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 88 A9 | 11100010 10001000 10101001 |
| UTF16 (big Endian) | 22 29 | 00100010 00101001 |
| UTF16 (little Endian) | 29 22 | 00101001 00100010 |
| UTF32 (big Endian) | 00 00 22 29 | 00000000 00000000 00100010 00101001 |
| UTF32 (little Endian) | 29 22 00 00 | 00101001 00100010 00000000 00000000 |
HTML Entity
∩
URI Encoded
%E2%88%A9
Description
The Unicode character U+2229, also known as the "INTERSECTION" symbol, plays a crucial role in digital text, particularly in mathematical and logical expressions. It is often used to denote the intersection of two or more sets within the context of set theory, indicating that an element belongs to all sets involved. For example, in a Venn diagram, the intersecting area between two circles represents the intersection. This character is vital for accurate communication in various scientific and technical disciplines, as well as in programming languages, where logical operations are commonly represented using symbols instead of textual expressions. Its precise use of space and context-specific meaning ensures clarity and reduces ambiguity in mathematical expressions, making it an essential tool in digital typography.
How to type the ∩ symbol on Windows
Hold Alt and type 8745 on the numpad. Or use Character Map.