What 𞹮 means
The formula decides what this Arabic math letter stands for.
𞹮 is the mathematical stretched form of seen (س). Arabic mathematical notation uses letter shapes to distinguish symbols, and Arabic- and Persian-script mathematics use this notation. The stretched design is part of the symbol's identity, not a font effect.
How old is Arabic algebraic notation?
Maghrebi examples are attested by the late 12th century.
Arabic algebra used letters and abbreviated words to mark quantities and operations. In one notation, ش, the first letter of shayʾ (“thing”), marks the unknown; that is a separate historical example, not a meaning of seen. Arabic mathematical handbooks preserve distinct letter forms, including stretched ones.
Don't confuse it with
4Questions people ask
1Why doesn't it join to nearby Arabic letters?
It does not join. Arabic Mathematical Symbols keep their coded forms instead of taking the positional shapes that ordinary Arabic letters use.
How to type 𞹮
𞹮\1EE6ECodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
