Step 1: Determine the UTF-8 encoding bit layout
The character ≝ has the Unicode code point U+225D. 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+225D to binary:
00100010 01011101. 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 10001001 10011101
EQUAL TO BY DEFINITION·U+225D
≝
Character Information
Code Point
U+225D
HEX
225D
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 89 9D | 11100010 10001001 10011101 |
| UTF16 (big Endian) | 22 5D | 00100010 01011101 |
| UTF16 (little Endian) | 5D 22 | 01011101 00100010 |
| UTF32 (big Endian) | 00 00 22 5D | 00000000 00000000 00100010 01011101 |
| UTF32 (little Endian) | 5D 22 00 00 | 01011101 00100010 00000000 00000000 |
HTML Entity
≝
URI Encoded
%E2%89%9D
Description
The Unicode character U+225D, known as the "Equal to by definition" symbol (≡), is a mathematical sign used to denote equality in various contexts. In digital text, this symbol represents a strong, formal equivalence or identity between two mathematical expressions. Its usage is most common in scientific and technical documents, where it helps to establish logical connections and relationships among complex concepts. The "Equal to by definition" symbol has been adopted across multiple disciplines such as mathematics, physics, chemistry, and computer science, making it a universally recognized symbol for equality. While not widely used in casual writing or everyday language, the U+225D holds significance in academic and professional fields due to its clear and concise representation of an essential mathematical concept.
How to type the ≝ symbol on Windows
Hold Alt and type 8797 on the numpad. Or use Character Map.