Step 1: Determine the UTF-8 encoding bit layout
The character - has the Unicode code point U+002D. In UTF-8, it is encoded using 1 byte because its codepoint is in the range of
0x0000
to0x007f
.
Therefore we know that the UTF-8 encoding will be done over 7 bits within the final 8 bits and that it will have the format:0xxxxxxx
Where thex
are 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+002D to binary:
00101101
. 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:
00101101
HYPHEN-MINUS·U+002D
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | 2D | 00101101 |
UTF16 (big Endian) | 00 2D | 00000000 00101101 |
UTF16 (little Endian) | 2D 00 | 00101101 00000000 |
UTF32 (big Endian) | 00 00 00 2D | 00000000 00000000 00000000 00101101 |
UTF32 (little Endian) | 2D 00 00 00 | 00101101 00000000 00000000 00000000 |
Description
The Unicode character U+002D, known as the HYPHEN-MINUS (hyphen-minus-u-002d), plays a significant role in digital typography. Primarily used to denote negative values or signs in numerical expressions, it is an essential component for distinction between positive and negative quantities in mathematical equations, textual divisions, and various forms of digital communication. In addition to its numerical context, the HYPHEN-MINUS also functions as a key part of compound word formation in certain languages, such as German, where it links multiple words together as a single concept, like "Ein-Zimmer-Wohnung" meaning "One-room apartment." Furthermore, it is used to represent subtraction in calculations and is often employed in formatting dates and URLs. The HYPHEN-MINUS belongs to the Basic Latin Unicode block (basic-latin), a crucial component of the Unicode system consisting of 128 essential characters spanning from U+0000 to U+007F. This range includes control codes and various special symbols indispensable for programming languages, text documents, and multiple applications across platforms and devices. The Basic Latin block serves as the foundation upon which many other Unicode blocks are built due to its importance in modern communication.
How to type the - symbol on Windows
Hold Alt and type 0045 on the numpad. Or use Character Map.