LEFT ARROW WITH SMALL CIRCLE·U+2B30

Character Information

Code Point
U+2B30
HEX
2B30
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 AC B0
11100010 10101100 10110000
UTF16 (big Endian)
2B 30
00101011 00110000
UTF16 (little Endian)
30 2B
00110000 00101011
UTF32 (big Endian)
00 00 2B 30
00000000 00000000 00101011 00110000
UTF32 (little Endian)
30 2B 00 00
00110000 00101011 00000000 00000000
HTML Entity
⬰
URI Encoded
%E2%AC%B0

Description

The Unicode character U+2B30 is known as the "LEFT ARROW WITH SMALL CIRCLE." This typographical symbol primarily serves a role in digital text for mathematical expressions and scientific notation, where it represents an operator known as "left shift arrow" or "arrow circle." It denotes a combination of two operations: the left shift operation and the small circle operation. The left shift operation signifies a change in the position of bits within a binary system, while the small circle operation indicates that the preceding expression is raised to the power of 2 raised to the exponent. Its typical usage is in computer programming languages, especially those involving binary mathematics and bitwise operations. While it may not have significant cultural or linguistic contexts, its technical importance lies in facilitating precise digital calculations and expressions, particularly within computer science and related fields.

How to type the symbol on Windows

Hold Alt and type 11056 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+2B30. 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+2B30 to binary: 00101011 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 10101100 10110000