U+00B1 PLUS-MINUS SIGN

The Unicode character U+00B1, officially named PLUS-MINUS SIGN, was introduced in Unicode version 1.1. It is part of the Latin 1 Sup block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as PLUS-OR-MINUS SIGN.

Categorized technically as a Math Symbol, this character typically falls under the Common script. In terms of text layout and rendering, the glyph is not a composition and has ambiguous in East Asian typography. When placed in bidirectional text, it behaves as an Unknown character. Its visual representation remains not mirrored regardless of the reading direction.