U21F7

U21F7 is the designation used to reference the Unicode code point U+21F7, which resides in the Arrows block of the Unicode standard. This code point represents a single symbol used to convey directional information in text. The exact visual appearance of the glyph depends on the font and rendering system, so different typefaces may show differing shapes for the same code point.

Encoding and representation: As part of Unicode, U+21F7 is a unique code point that can be encoded in various text encodings. In HTML, it can be represented using a hexadecimal character reference such as ⇷. In Unicode-aware environments, it is treated as a symbol in the Arrows block and can be input or copied as the character itself in supporting software.

Usage and rendering: The symbol is commonly used in mathematical notation, diagrams, and user interfaces where a directional cue is required. Font support varies, so some environments may display a different glyph or fail to render the character if the chosen font lacks support for the Arrows block. Modern operating systems and fonts generally provide rendering for U+21F7, but legacy systems may not.

Relation to other characters: U+21F7 sits within a sequence of related arrow symbols in the Arrows block (U+21F0 to U+21FF), which encompasses various arrow forms and arrow-related glyphs. Researchers and developers often consult the Unicode character database for precise naming, properties, and compatibility information.

See also: Unicode Arrows block, Unicode character database, U+21F0 through U+21FF.