∆
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Translingual
editEtymology
editFrom the Ancient Greek capital letter Δ.
Symbol
edit∆
- (mathematics) An increment or change in a variable.
- ∆x the change in variable x
- (set theory) The symmetric difference symbol.
- (mathematics, physics) The Laplace operator.
- Synonym: ∇²
Usage notes
edit- Although this is the official encoding for the mathematical character, most math publications that apply Unicode (LaTeX publications rarely use Unicode) use simply the Greek letter Δ for convenience.