How the Å came to be

Re:How the Å came to be by henrikschroder on Wednesday January 03, 2018 @05:01AM (#16059778)

Also, extra extra unnecessary knowledge: The symbol for the Ångström unit has a different Unicode encoding than the capital "Å", in the same way that the Ohm symbol "Ω" is different from Greek capital omega. "W" for Watt doesn't have it's own codepoint in Unicode though, so that's arbitrary.

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Re:How the Å came to be by weinzierl on Wednesday January 03, 2018 @06:34AM (#16060156)

This has only been allowed into Unicode for compatibility with older encodings and is sort of an exception.

> Multiple Semantics. Because nonspacing combining marks have such a wide variety of applications, they may have multiple semantic values. For example, U+0308 = diaeresis = trema = umlaut = double derivative. Such multiple functions for a single combining mark are not separately encoded in the standard.

[..]

> Occasionally, for compatibility with other standards, a single abstract character may correspond to more than one code point—for example, “Å” corresponds both to U+00C5 Å latin capital letter a with ring above and to U+212B Å angstrom sign.

Both quotes from Unicode Standard 10.0:

http://www.unicode.org/versions/Unicode10.0.0/UnicodeStandar...

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