Step 1: Determine the UTF-8 encoding bit layout
The character has the Unicode code point U+0091. In UTF-8, it is encoded using 2 bytes because its codepoint is in the range of
0x0080to0x07ff.
Therefore we know that the UTF-8 encoding will be done over 11 bits within the final 16 bits and that it will have the format:110xxxxx 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+0091 to binary:
10010001. 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:
11000010 10010001
<control>·U+0091
Character Information
Code Point
U+0091
HEX
0091
Unicode Plane
Basic Multilingual Plane
Category
Control
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | C2 91 | 11000010 10010001 |
| UTF16 (big Endian) | 00 91 | 00000000 10010001 |
| UTF16 (little Endian) | 91 00 | 10010001 00000000 |
| UTF32 (big Endian) | 00 00 00 91 | 00000000 00000000 00000000 10010001 |
| UTF32 (little Endian) | 91 00 00 00 | 10010001 00000000 00000000 00000000 |
HTML Entity
‘
URI Encoded
%C2%91
Description
The Unicode character U+0091, also known as the "CHARACTER 0091," is primarily utilized for vertical text formatting in digital systems, playing a crucial role in rendering vertical text across different platforms and devices. This character falls under the "Control Pictures" category of Unicode (GeneralCategory: Cc), indicating its intended use by software rather than direct display to users. Notably, CHARACTER 0091 is significant for languages like Japanese and Chinese, which have both horizontal and vertical writing systems. In these contexts, the character helps maintain compatibility with legacy systems, ensuring consistency in digital typography. Despite its importance within specific applications, it remains a niche character within the broader scope of Unicode, reflecting the varied needs of global typography. The character is part of the Latin-1 Supplement block (category: Latin-1 Supplement), a range of 256 characters (Unicode points 128 to 255) that serve various text formatting and typography purposes. This block includes symbols essential for proper document formatting, such as pilcrows and en dashes. The Latin-1 Supplement Unicode block extends the basic Latin character set, thereby enhancing text readability and visual appeal across a wide range of applications.
How to type the symbol on Windows
Hold Alt and type 0145 on the numpad. Or use Character Map.