Minus Sign in Triangle ⨺

⨺ (U+2A3A) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.

What it is and where it’s used: Minus Sign in Triangle is part of the Symbols family (block: Supplemental Mathematical Operators). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.

History & usage: The MINUS SIGN IN TRIANGLE (U+2A3A) belongs to the Supplemental Mathematical Operators block. It is a niche symbol used in math and in user interfaces to signal a subtraction-like operation within a triangular form. The character name describes its visual and functional role, and that helps distinguish it from a plain minus sign in other contexts. In practice, users may see it in advanced formulas or specialized software where a triangle hints at a specific operation. Its usage is related to clear signaling rather than broad everyday writing. Focused on technical readability, this symbol often appears only in contexts where precise symbol sets are required. Since it is a mathematical operator, it relies on consistent interpretation across fonts and systems to avoid confusion. The symbol’s history is tied to the evolution of mathematical notation and typed interfaces that expand the set of available operators. Usage is best understood within formal formulas or domain-specific tools. Common math symbols indicate operations or comparisons in formulas and user interfaces.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2A3A in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.

Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.

Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.

See our category page for related symbols.