Step 1: Determine the UTF-8 encoding bit layout
The character Σ has the Unicode code point U+03A3. 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+03A3 to binary:
00000011 10100011. 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:
11001110 10100011
GREEK CAPITAL LETTER SIGMA·U+03A3
Σ
Character Information
Code Point
U+03A3
HEX
03A3
Unicode Plane
Basic Multilingual Plane
Category
Uppercase Letter
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | CE A3 | 11001110 10100011 |
| UTF16 (big Endian) | 03 A3 | 00000011 10100011 |
| UTF16 (little Endian) | A3 03 | 10100011 00000011 |
| UTF32 (big Endian) | 00 00 03 A3 | 00000000 00000000 00000011 10100011 |
| UTF32 (little Endian) | A3 03 00 00 | 10100011 00000011 00000000 00000000 |
HTML Entity
Σ
URI Encoded
%CE%A3
Description
U+03A3 Greek Capital Letter Sigma is a significant character in the Unicode Standard, which encompasses over 140,000 characters from different languages, scripts, and technical symbols. As one of the primary symbols in the Greek alphabet, it holds an important role in digital text for representing uppercase Sigma (Σ). The usage of this character transcends its linguistic value; it also serves as a mathematical constant, sigma (σ), frequently employed in statistical calculations and scientific equations. Its adoption into modern technology has expanded its relevance across various fields, including computer programming, cryptography, and even the domain name system. Thus, U+03A3 Greek Capital Letter Sigma represents not only a symbol of antiquity but also an integral part of contemporary digital communication.
How to type the Σ symbol on Windows
Hold Alt and type 0931 on the numpad. Or use Character Map.