★ U+0305: Technical Specifications for the Combining Overline Character
The **Combining Overline** (“̅” U+0305) is a fundamental nonspacing mark in the Unicode standard, widely used in mathematics and phonetics. This definitive resource provides developers and technical enthusiasts at iloveunicode.com with the complete technical data, encoding conversions, and usage context for this essential codepoint.
U+0305 Diacritical Mark Specifications
The Unicode codepoint **U+0305** represents the combining character **Combining Overline**. It is classified as a Nonspacing Mark (Mn) and belongs to the *Combining Diacritical Marks* block of the Basic Multilingual Plane. This mark was officially added to Unicode in **version 1.1 (June, 1993)**, underscoring its long-standing importance in text representation.
Main Character Properties and Bidirectional Analysis
| Name | Combining Overline |
|---|---|
| Unicode Codepoint | U+0305 |
| Unicode Version | 1.1 (June, 1993) |
| Block | Combining Diacritical Marks |
| Plane | Basic Multilingual Plane |
Bidirectional Data
| Bidirectional class | Nonspacing Mark (NSM) |
|---|---|
| Is mirrored? | No |
Other Unicode Data
| Category | Nonspacing Mark |
|---|---|
| Script | Code for inherited script |
| Combining Class | Above (230) |
Encoding and Conversion Data for U+0305
Accurate encoding is essential for the display of this mark in digital documents and software development. Below is the complete conversion data for **U+0305** across various programming languages and web formats.
U+0305 Conversion in Programming and Web
| *HTML (decimal)* | ̅ |
|---|---|
| *HTML (hex)* | ̅ |
| *HTML (named)* | - |
| *URL Escape Code* | %CC%85 |
| *CSS* | \00305 |
| *JavaScript, JSON* | \u0305 |
| *C, C++, Java* | \u0305 |
| *Python* | \u0305 |
| *Rust* | \u{0305} |
| *Ruby* | \u0305 |
UTF Encodings
| UTF-8 (hex) | 0xCC 0x85 |
|---|---|
| UTF-16 (hex) | 0x0305 |
| UTF-32 (hex) | 0x00000305 |
How to Type “̅” (Combining Overline)
To input the Combining Overline diacritic directly, use the following key combinations:
- Windows: Hold Alt, then type 0 3 0 5. Release Alt.
- Mac: Hold Alt ⌥, then type 0 3 0 5. Release Alt.
Preview and Related Characters
The *Combining Overline* mark (̅) is designed to render above a preceding base character. The box below presents an interactive preview of how the character code appears and the mark’s visual output across various font families.
Copy-Ready Character Code:
\u0305
Font Preview:
- A̅ (Times New Roman)
- A̅ (Arial)
- A̅ (Courier New)
Related Overline Characters
While U+0305 is the canonical combining form, another character exists for standalone representation:
- ‾ (U+203E): Overline
Conclusion: Advancing Your Unicode Knowledge
Understanding the technical behavior of nonspacing diacritics, such as the **Combining Overline** (U+0305), is critical for applications in mathematics, language processing, and advanced text display. The detailed specifications provided here help ensure accurate rendering and data interchange. Developers can rely on the precise technical knowledge available at iloveunicode.com for robust and standards-compliant implementations across all platforms.