triangle symbol
Three-sided geometric icon
A triangle symbol (△ or ▲) serves various purposes depending on context.
In mathematics, it often denotes change or difference: △x represents the change in x.
In music, it indicates a major chord.
Warning signs use triangles to signal caution.
In editing and proofreading, a triangle marks where something should be inserted.
The inverted triangle (▽) sometimes carries distinct meanings, such as the nabla operator in calculus.
- pyramidPointed polyhedral solid
- deltaSymbol denoting variation
- geometryScience of spatial relationships
- threeSum of one twice
- apexUppermost point or culmination
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