Step 1: Determine the UTF-8 encoding bit layout
The character Ⅱ has the Unicode code point U+2161. 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+2161 to binary:
00100001 01100001. 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 10000101 10100001
ROMAN NUMERAL TWO·U+2161
Ⅱ
Character Information
Code Point
U+2161
HEX
2161
Unicode Plane
Basic Multilingual Plane
Category
Letter Number
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 85 A1 | 11100010 10000101 10100001 |
| UTF16 (big Endian) | 21 61 | 00100001 01100001 |
| UTF16 (little Endian) | 61 21 | 01100001 00100001 |
| UTF32 (big Endian) | 00 00 21 61 | 00000000 00000000 00100001 01100001 |
| UTF32 (little Endian) | 61 21 00 00 | 01100001 00100001 00000000 00000000 |
HTML Entity
Ⅱ
URI Encoded
%E2%85%A1
Description
The Unicode character U+2161, known as ROMAN NUMERAL TWO, is a crucial element in typography and digital text formatting. This character represents the Roman numeral for two, denoted as "II" in lowercase or "Ⅱ" in uppercase. It plays a vital role in various applications, such as numbering systems, historical texts, and mathematical expressions that require the use of Roman numerals. In digital text, it helps maintain consistency and accuracy in documents and materials where Roman numerals are preferred over Arabic numerals for stylistic or cultural reasons. Despite being less commonly used in modern times, the ROMAN NUMERAL TWO remains an important symbol that reflects ancient numeral systems and their impact on contemporary numbering conventions.
How to type the Ⅱ symbol on Windows
Hold Alt and type 8545 on the numpad. Or use Character Map.