Rightwards Arrow with Hook Emoji ↪

U+21AA

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Emoji Meaning

Injective function in mathematics. It's also known as injection, or one-to-one function.

The symbol “Rightwards Arrow with Hook” is included in the “Arrows with modifications” Subblock of the “Arrows” Block and was approved as part of Unicode version 1.1 in 1993. In 2015, it was also approved as an emoji in version 1.0 and added to the “Arrow” Subcategory of the “Symbols” Category.

Text is also available in the following languages: Español; Русский;

Synonyms

Left Arrow Curving Right.

Unicode Name	Rightwards Arrow with Hook
Unicode Number
HTML Code
CSS Code
Unicode Blocks	Arrows
Unicode Subblock	Arrows with modifications
Unicode Version	1.1 (1993)
Emoji Version	1.0 (2015)
Emoji Category	Symbols
Emoji Subcategory	Arrow

Version	1.1
Block	Arrows
Type of paired mirror bracket (bidi)	None
Composition Exclusion	No
Case change	21AA
Simple case change	21AA

Encoding	hex	dec (bytes)	dec	binary
UTF-8	E2 86 AA	226 134 170	14845610	11100010 10000110 10101010
UTF-16BE	21 AA	33 170	8618	00100001 10101010
UTF-16LE	AA 21	170 33	43553	10101010 00100001
UTF-32BE	00 00 21 AA	0 0 33 170	8618	00000000 00000000 00100001 10101010
UTF-32LE	AA 21 00 00	170 33 0 0	2854289408	10101010 00100001 00000000 00000000