Step 1: Determine the UTF-8 encoding bit layout
The character ℚ has the Unicode code point U+211A. 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+211A to binary:
00100001 00011010. 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 10000100 10011010
DOUBLE-STRUCK CAPITAL Q·U+211A
ℚ
Character Information
Code Point
U+211A
HEX
211A
Unicode Plane
Basic Multilingual Plane
Category
Uppercase Letter
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 84 9A | 11100010 10000100 10011010 |
| UTF16 (big Endian) | 21 1A | 00100001 00011010 |
| UTF16 (little Endian) | 1A 21 | 00011010 00100001 |
| UTF32 (big Endian) | 00 00 21 1A | 00000000 00000000 00100001 00011010 |
| UTF32 (little Endian) | 1A 21 00 00 | 00011010 00100001 00000000 00000000 |
HTML Entity
ℚ
URI Encoded
%E2%84%9A
Description
The character U+211A, known as the DOUBLE-STRUCK CAPITAL Q, is a typographical symbol primarily used in mathematical notation and scientific contexts within digital text. Its typical usage involves representing the quadratic function, specifically denoted by "Q" when written with double-struck (or blackboard bold) font style. This symbol enhances readability and clarity in mathematical equations or expressions, making it easier for readers to differentiate between variables and constants. The DOUBLE-STRUCK CAPITAL Q is an essential tool in various fields of study, such as mathematics, physics, engineering, and computer science. Despite its limited usage in everyday language, this Unicode character plays a vital role in conveying complex concepts with precision and accuracy.
How to type the ℚ symbol on Windows
Hold Alt and type 8474 on the numpad. Or use Character Map.