U+25B3\triangle△△<mo>△</mo>Semantic identity and intent
Characters to distinguish
- ∠ — Angle
Use △ in the right format
Meaning and usage
Represents a triangle, geometric figure, or delta-like operator according to context.
Use it before vertex labels for a geometric triangle and avoid confusing it with Greek delta.
Pronunciation: white up-pointing triangle
Formula examples
△ABCHow to type White Up-Pointing Triangle
- Windows
- Use Character Map or enter U+25B3 in a Unicode-aware application.
- macOS
- Open Character Viewer with Control–Command–Space and search by the symbol name.
- Microsoft Word
- In an equation, type \triangle and press Space when Word supports the command.
- iPhone and iPad
- Copy and paste △, or use a math/LaTeX app. The standard iOS keyboard may not expose every mathematical symbol.
- Android
- Copy and paste △, or use a math keyboard or LaTeX editor. Keyboard layouts vary by device and app.
- Google Docs
- For plain text, paste △ or use Insert → Special characters. For structured math, use the equation editor and verify \triangle.
- Excel
- Paste △ into a cell or use Insert → Symbol when available. Ordinary cells preserve the character but do not interpret LaTeX commands.
Common mistakes
- Preserve the orientation and decoration of △; in geometry a rotated, barred, or marked symbol can represent a different relation or object.
- For plain text, copy △ as U+25B3; for structured equations, use \triangle in math mode. A look-alike glyph or image can break search, accessibility, or parsing when the intended character is White Up-Pointing Triangle.
When to use △
- Use △ in plain text when a Unicode character is appropriate and the destination preserves U+25B3.
- Use \triangle in an equation editor when mathematical spacing or structure matters.
- Define the local meaning when White Up-Pointing Triangle is used in geometry, trigonometry with a field-specific convention.
Look-alikes and related characters
- ∠ — Angle
Font and compatibility notes
Font coverage varies; verify the code point and destination rendering before publication.
Continue the workflow
From White Up-Pointing Triangle to a finished equation
- Copy the characterUse △ in plain text when Unicode is accepted.
- Choose a structured formatUse
\trianglefor LaTeX or the MathML snippet for accessible web equations. - Edit or convertOpen the value in the editor or converter without retyping it.
Review and source notes
Quality tier: catalog
Last reviewed: 2026-07-23
Review method: Catalog review of character identity and notation mappings.
Verified against: Unicode Standard, Unicode mathematical notation guidance, and established LaTeX/MathML syntax.
Reference sources
- The Unicode StandardUnicode Consortium — Character identity, encoding, names, and conformance.
- Unicode Character Code ChartsUnicode Consortium — Code points and official character charts.
Frequently asked questions
What does the White Up-Pointing Triangle symbol mean?
Represents a triangle, geometric figure, or delta-like operator according to context.
What is the LaTeX command for △?
Use \triangle in a compatible math environment.
Can I copy △ as Unicode?
Yes. Use the copy button above to copy the Unicode character directly.