Step 1: Determine the UTF-8 encoding bit layout
The character ⦡ has the Unicode code point U+29A1. 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+29A1 to binary:
00101001 10100001. 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 10100110 10100001
SPHERICAL ANGLE OPENING UP·U+29A1
⦡
Character Information
Code Point
U+29A1
HEX
29A1
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 A6 A1 | 11100010 10100110 10100001 |
| UTF16 (big Endian) | 29 A1 | 00101001 10100001 |
| UTF16 (little Endian) | A1 29 | 10100001 00101001 |
| UTF32 (big Endian) | 00 00 29 A1 | 00000000 00000000 00101001 10100001 |
| UTF32 (little Endian) | A1 29 00 00 | 10100001 00101001 00000000 00000000 |
HTML Entity
⦡
URI Encoded
%E2%A6%A1
Description
The character U+29A1 represents the "Spherical Angle Opening Up" symbol in Unicode. This typographical symbol is rarely used in digital text due to its highly specialized nature. It primarily finds application in mathematical equations, particularly those involving spherical geometry and trigonometry. In these contexts, it signifies an angle opening up from a sphere or the rotation of a vector about a specified axis on a sphere's surface. Despite its rarity in common usage, the "Spherical Angle Opening Up" symbol holds significant importance for researchers and mathematicians working in fields such as astronomy, physics, and computer graphics. There is no notable cultural, linguistic, or general technical context associated with this character, as it serves a very specific mathematical function.
How to type the ⦡ symbol on Windows
Hold Alt and type 10657 on the numpad. Or use Character Map.