Character Information

Code Point
U+2430
HEX
2430
Unicode Plane
Supplementary Ideographic Plane

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 90 B0
11100010 10010000 10110000
UTF16 (big Endian)
24 30
00100100 00110000
UTF16 (little Endian)
30 24
00110000 00100100
UTF32 (big Endian)
00 00 24 30
00000000 00000000 00100100 00110000
UTF32 (little Endian)
30 24 00 00
00110000 00100100 00000000 00000000
HTML Entity
␰
URI Encoded
%E2%90%B0

Description

U+2430 is a unique character in the Unicode standard, which represents the "DOUBLE-STRUCK CAPITAL B". This character belongs to the category of Letterlike Symbols and is commonly used in mathematical expressions or scientific notation for denoting bold uppercase letters. The double-struck capital B, specifically, is often used to denote a unit of measurement called the "Bohr magneton", which is a fundamental constant in quantum mechanics. It is also employed in various fields such as engineering and physics due to its clear distinction from other characters. In digital text, U+2430 ensures clarity and precision in expressing mathematical or scientific concepts that require specific symbols rather than just regular alphabetic letters.

How to type the symbol on Windows

Hold Alt and type 9264 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+2430. 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+2430 to binary: 00100100 00110000. 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:
    11100010 10010000 10110000