Step 1: Determine the UTF-8 encoding bit layout
The character ⦁ has the Unicode code point U+2981. 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+2981 to binary:
00101001 10000001. 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 10000001
Z NOTATION SPOT·U+2981
⦁
Character Information
Code Point
U+2981
HEX
2981
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 A6 81 | 11100010 10100110 10000001 |
| UTF16 (big Endian) | 29 81 | 00101001 10000001 |
| UTF16 (little Endian) | 81 29 | 10000001 00101001 |
| UTF32 (big Endian) | 00 00 29 81 | 00000000 00000000 00101001 10000001 |
| UTF32 (little Endian) | 81 29 00 00 | 10000001 00101001 00000000 00000000 |
HTML Entity
⦁
URI Encoded
%E2%A6%81
Description
The Unicode character U+2981 is known as the Z NOTATION SPOT. It primarily serves a role in digital typography, specifically within the context of mathematical notation and typesetting. This character enables the precise representation of mathematical symbols and formulas, providing greater clarity and accuracy for users in various fields such as engineering, physics, and computer science. Although it may not be commonly used in everyday text, it plays a crucial role in specialized areas where accurate symbolic representation is essential. The Z NOTATION SPOT is an important tool that enhances the utility of Unicode by offering support for complex mathematical expressions and formulas in digital text, thus contributing to the ongoing evolution of typography and information exchange across diverse disciplines.
How to type the ⦁ symbol on Windows
Hold Alt and type 10625 on the numpad. Or use Character Map.