0x21A6

0x21A6 refers to the hexadecimal encoding of the Unicode code point U+21A6. The character is named Rightwards Arrow From Bar and is commonly rendered as the glyph ↦. It is used in mathematical and computational notation to indicate a mapping from one element to another.

The code point U+21A6 belongs to the Unicode Arrows block, which spans from U+2190 to U+21FF. In UTF-8, U+21A6 is encoded as the three-byte sequence E2 86 A6. The visual appearance of the symbol can vary across fonts and environments, and some fonts may not include it, in which case a fallback glyph is displayed.

In practice, the symbol is often used to denote a mapping function in mathematics, for example in expressions such as x ↦ f(x) to indicate that x is mapped to f(x). It is also encountered in computer science, typesetting, and related disciplines as a specialized arrow for mappings. In LaTeX, the symbol is produced with the command \mapsto in math mode.

Summary: 0x21A6 encodes the Rightwards Arrow From Bar (↦), a Unicode math symbol used to convey mappings or assignments in formal notation. It resides in the Arrows block and is represented in UTF-8 as E2 86 A6. Font support and rendering may vary, but the intended meaning remains the same across contexts.