GREEK SMALL LETTER ALPHA WITH DASIA AND YPOGEGRAMMENI·U+1F81

Character Information

Code Point
U+1F81
HEX
1F81
Unicode Plane
Basic Multilingual Plane
Category
Lowercase Letter

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E1 BE 81
11100001 10111110 10000001
UTF16 (big Endian)
1F 81
00011111 10000001
UTF16 (little Endian)
81 1F
10000001 00011111
UTF32 (big Endian)
00 00 1F 81
00000000 00000000 00011111 10000001
UTF32 (little Endian)
81 1F 00 00
10000001 00011111 00000000 00000000
HTML Entity
ᾁ
URI Encoded
%E1%BE%81

Description

U+1F81 Greek Small Letter Alpha with Diasia and Ypogeagrammeni is a special Unicode character that represents the letter "α" (alpha) with diasia and ypogeagrammeni, which are historical features of certain Greek scripts. In digital text, this character is used to represent an ancient variant of the alpha symbol, primarily for typography or linguistic research purposes. The addition of diasia and ypogeagrammeni to the alpha symbol reflects a distinct cultural and historical context, as these features were commonly employed in early forms of Greek writing systems. By incorporating this character into digital texts, users can pay homage to the rich history of the Greek language while also showcasing their knowledge of typography and linguistic nuances.

How to type the symbol on Windows

Hold Alt and type 8065 on the numpad. Or use Character Map.

  1. Step 1: Determine the UTF-8 encoding bit layout

    The character has the Unicode code point U+1F81. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of 0x0800 to 0xffff.

    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 the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+1F81 to binary: 00011111 10000001. Those are the payload bits.

  3. 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:
    11100001 10111110 10000001