± Plus-Minus Sign
U+00B1
±
ℹ️ About
The Plus-Minus Sign (±) is a mathematical glyph used to indicate a range of values, tolerance in engineering (e.g., 5cm ± 0.1), or the roots of a quadratic equation. In scientific contexts, it represents the standard error or uncertainty of a measurement. It is categorized as a Math Symbol (Sm).
⚠️ Note: Do not confuse with ∓ (Minus-Plus Sign, U+2213).
⚡ Codes
HTML
±
CSS
\00B1
Python
\u00B1
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