Double-Line Equal to or Less-Than ⪙

⪙ (U+2A99) 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: Double-Line Equal to or Less-Than 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 symbol U+2A99 is called Double-Line Equal To Or Less-Than. It belongs to the Supplemental Mathematical Operators block in Unicode. It is used in math and in user interfaces to convey a relation that combines equal and less-than ideas. In plain terms, it signals a relation that is not just less than, but allows a double line for emphasis in selective texts. Historically, new math symbols appear as the need for precise notation grows. This symbol appears in specialized textbooks and software that implement rich math notation. It is one of several double-line operators that help show hierarchical or constrained relations in formulas. Its usage follows general rules for math symbols: they should be clearly distinct from standard less-than or equal signs. Common math symbols indicate operations or comparisons in formulas and user interfaces. The symbol is part of a broader effort to expand how relations are shown in digital and print math. Users may encounter it in advanced math, logic, or typesetting where compact notation helps readability.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2A99 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.