Ṁ is the Unicode character LATIN CAPITAL LETTER M WITH DOT ABOVE, code point U+1E40 (decimal 7744) in the Latin Extended Additional block, added in Unicode 1.1. In HTML write Ṁ, and in UTF-8 it is the 3 bytes E1 B9 80.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1E40 |
| Decimal | 7744 |
| UTF-8 bytes | E1 B9 80 |
| UTF-16 (big-endian) | 1E40 |
| UTF-32 | 00001E40 |
| HTML decimal | Ṁ |
| HTML hex | Ṁ |
| CSS | \1E40 |
| JavaScript | \u1E40 |
| JSON | \u1E40 |
| Python | \u1E40 |
| Python by name | \N{LATIN CAPITAL LETTER M WITH DOT ABOVE} |
| Java, C# | \u1E40 |
| Rust, Swift | \u{1E40} |
| Go, C, C++ | \u1E40 |
| URL (percent-encoded) | %E1%B9%80 |
JavaScript and JSON strings store text as UTF-16, so this character is one code unit long. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | LATIN CAPITAL LETTER M WITH DOT ABOVE |
| Code point | U+1E40 (decimal 7744) |
| Block | Latin Extended Additional (U+1E00–U+1EFF) |
| General category | Lu: Uppercase letter |
| Script | Latin |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 1.1 |
Decomposition
LATIN CAPITAL LETTER M WITH DOT ABOVE is canonically equivalent to the sequence below. Normalising text to NFD splits it into these parts; NFC joins them back into U+1E40. Search and comparison should normalise first, or the two spellings will not match.
Upper and lower case
- ṁ U+1E41 Latin Small Letter M With Dot Above — Lowercase
Nearby in Latin Extended Additional
- Ḹ U+1E38 Latin Capital Letter L With Dot Below And Macron
- ḹ U+1E39 Latin Small Letter L With Dot Below And Macron
- Ḻ U+1E3A Latin Capital Letter L With Line Below
- ḻ U+1E3B Latin Small Letter L With Line Below
- Ḽ U+1E3C Latin Capital Letter L With Circumflex Below
- ḽ U+1E3D Latin Small Letter L With Circumflex Below
- Ḿ U+1E3E Latin Capital Letter M With Acute
- ḿ U+1E3F Latin Small Letter M With Acute
- ṁ U+1E41 Latin Small Letter M With Dot Above
- Ṃ U+1E42 Latin Capital Letter M With Dot Below
- ṃ U+1E43 Latin Small Letter M With Dot Below
- Ṅ U+1E44 Latin Capital Letter N With Dot Above
- ṅ U+1E45 Latin Small Letter N With Dot Above
- Ṇ U+1E46 Latin Capital Letter N With Dot Below
- ṇ U+1E47 Latin Small Letter N With Dot Below
- Ṉ U+1E48 Latin Capital Letter N With Line Below
All 256 characters: Latin Extended Additional.
Official reference
Questions people ask
- What is the HTML code for Ṁ?
- Use Ṁ (decimal) or Ṁ (hex).
- What is the UTF-8 encoding of U+1E40?
- E1 B9 80 (hex), 3 bytes. In a URL it is %E1%B9%80.
- How do I write U+1E40 in JavaScript or Python?
- JavaScript: \u1E40. Python: \u1E40.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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