U+1D40E "𝐎" Mathematical Bold Capital O Unicode Character
Unicode Version 17.0
U+1D40E "𝐎" Mathematical Bold Capital O is a typographic variant of the standard Latin capital letter O, designed for use in mathematical and scientific notation where bold formatting is required to distinguish variables, vectors, matrices, or set designations from ordinary text. It belongs to the Mathematical Alphanumeric Symbols block, which was added to Unicode to preserve the semantic distinction between purely stylistic formatting and meaningful mathematical expression, ensuring that this bold O retains its intended weight and shape across different fonts and platforms. Unlike a regular bold O produced by applying font styling to plain text, this character carries a specific code point that identifies it as a mathematical symbol, preventing confusion with other uses of the same letter.
General Properties
Encodings
| HTML Decimal Encoding |
𝐎 |
| HTML Hex Encoding |
𝐎 |
| UTF-8 Encoding |
0xF0 0x9D 0x90 0x8E |
| UTF-16 Encoding |
0xD835 0xDC0E |
| UTF-32 Encoding |
0x0001D40E |
| C/C++/Java Escape |
\ud835\udc0e |
Unicode Properties