Step 1: Determine the UTF-8 encoding bit layout
The character ≟ has the Unicode code point U+225F. 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+225F to binary:
00100010 01011111. 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 10011111
QUESTIONED EQUAL TO·U+225F
≟
Character Information
Code Point
U+225F
HEX
225F
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 89 9F | 11100010 10001001 10011111 |
| UTF16 (big Endian) | 22 5F | 00100010 01011111 |
| UTF16 (little Endian) | 5F 22 | 01011111 00100010 |
| UTF32 (big Endian) | 00 00 22 5F | 00000000 00000000 00100010 01011111 |
| UTF32 (little Endian) | 5F 22 00 00 | 01011111 00100010 00000000 00000000 |
HTML Entity
≟
URI Encoded
%E2%89%9F
Description
The Unicode character U+225F, known as the QUESTIONED EQUAL TO symbol, plays a significant role in mathematical notation and digital text. It is commonly used to express an uncertain or approximate equality between two values or expressions. This symbol can be found within various mathematical equations and scientific formulas where precise equality might not be guaranteed due to rounding errors, measurement uncertainties, or approximations. The QUESTIONED EQUAL TO symbol often appears in engineering, physics, and other technical fields that deal with complex calculations. Despite its name, it is not culturally specific and does not derive from any particular language or cultural context. Its primary purpose is to communicate a nuanced form of equality within the realm of precise numerical data.
How to type the ≟ symbol on Windows
Hold Alt and type 8799 on the numpad. Or use Character Map.