Proportion
Copy and paste the proportion symbol ∷ (U+2237) instantly. Part of the Mathematical Operators Unicode block.
Works everywhere: websites, documents, social media, code editors
Character Codes
About This Symbol
- Name
- Proportion
- Unicode Block
- Mathematical Operators
- Code Point
- U+2237
The Proportion (∷) is a Unicode character assigned to the Mathematical Operators block at code point U+2237. This block contains characters used across a variety of applications including technical documentation, web development, mathematical notation, and everyday digital communication. The proportion symbol can be inserted directly into text or referenced through its HTML entity, CSS code, or JavaScript escape sequence for use in websites and applications.
How to Use
- 1.Click "Copy Symbol" above to copy ∷ to your clipboard
- 2.Paste it anywhere with Ctrl+V (or Cmd+V on Mac)
- 3.Or use the HTML entity
∷in your code - 4.For CSS, use
\2237with the content property
Understanding Proportion
The proportion (∷), registered at U+2237 in the Mathematical Operators block, is one of the many characters that make digital typography expressive and precise. Its standardized encoding means that any system supporting Unicode can display it faithfully without requiring special fonts or plugins.
The hexadecimal value 2237 places this character at decimal position 8759 in the Unicode table. When embedding this character in source code, developers can choose between the HTML numeric reference ∷, the CSS escape \2237, or the JavaScript literal \u{2237}. Each method guarantees correct rendering regardless of the file encoding.
This character from the Mathematical Operators block addresses a specific typographic or symbolic need. It is used in contexts where its particular shape or meaning cannot be adequately represented by more common characters, making it valuable for specialized documents, interfaces, and data formats.
About Mathematical Operators
Mathematical operator symbols encode centuries of quantitative reasoning into compact glyphs. This collection spans everything from basic arithmetic operators through advanced set theory notation, tensor products, and abstract algebraic symbols. Researchers typesetting papers in LaTeX, developers building scientific computing interfaces, and educators creating instructional materials all depend on precise rendering of these characters to communicate unambiguous meaning.
Gottfried Wilhelm Leibniz introduced the integral sign in 1675, and Leonhard Euler popularized the summation symbol a century later. For most of printing history, mathematical symbols required specialized metal type, making scientific publishing expensive and slow. Donald Knuth's TeX system, created in 1978, revolutionized mathematical typesetting by defining a comprehensive digital symbol library. Unicode absorbed and organized these symbols across multiple blocks, starting with the core Mathematical Operators block in version 1.0 and expanding through Supplemental Mathematical Operators in version 3.2 and Mathematical Alphanumeric Symbols in version 3.1.
Common Uses
- •Academic paper typesetting and scientific publishing
- •Programming language syntax for logical and comparison operations
- •Statistical notation in data science and research
- •Engineering specifications and formula documentation
- •Educational materials for mathematics instruction
Technical Notes: The Mathematical Alphanumeric Symbols block (U+1D400–U+1D7FF) provides styled variants of Latin and Greek letters — bold, italic, script, fraktur, and double-struck forms — that carry specific semantic meaning in mathematics. A bold capital R denotes something entirely different from a double-struck R (which represents the real numbers). These are encoded as separate code points rather than styled via markup because their meaning is intrinsic, not presentational.
Cultural Context: Mathematical notation is one of the few truly international symbol systems. A summation sign means the same thing in Beijing, Berlin, and Buenos Aires. However, some conventions do vary regionally — the use of a centered dot versus a multiplication cross for products, or a colon versus an obelus for division, reflects distinct pedagogical traditions across European, Asian, and American mathematics education.