What 𞺩 means
It marks yeh in a distinct mathematical style.
In an equation, it serves as a variable or named letter; the surrounding notation tells you what it stands for.
Why keep its style separate from ي?
Its form carries a mathematical distinction.
Arabic mathematical notation uses letter shapes in several styles, much as formulas distinguish a plain variable from a bold or italic one. The styles are part of the written symbol, not decoration.
Unlike ordinary ي, it does not join surrounding Arabic letters or change its shape according to its neighbors.
How old is the notation behind 𞺩?
It belongs to a much older Arabic letter-based math tradition.
These mathematical alphabets derive from Arabic letter forms used for centuries in manuscripts and traditional print. Arabic algebraic symbols are attested by the late 12th century.
Arabic- and Persian-language mathematics use these letter-based styles; Arabic notation also appears in handbooks from West Asia, Libya, and Algeria.
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Who writes 𞺩
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Don't confuse it with
1
Questions people ask
1Why does 𞺩 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
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How to type or find 𞺩
- Search it as
- arabic math symbol · arabic math letter · math yeh · yeh variable · arabic equation letter · unicode math letter
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𞺩\1EEA9Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.