U+212A (was: "Re: Hexadecimal")

From: Anto'nio Martins-Tuva'lkin (antonio@tuvalkin.web.pt)
Date: Sat Aug 16 2003 - 18:43:12 EDT

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    On 2003.08.16, 15:32, Philippe Verdy <verdy_p@wanadoo.fr> wrote:

    > I suppose that the difference was needed to disambiguate scientific
    > text transmitted in uppercase-only form on poor devices unable to
    > represent lowercase letters, and where a text like "KJ/K" would
    > have been difficult to interpret as "kJ/K" i.e. kilojoules per kelvin.

    OK for UC-only poor devices, but quality typeset is supposed to keep
    some lower case letters even in "all caps" -- such as, f.i., the "c" or
    "ac" of scottish names starting with "Mac", or SI preffixes. Note that
    "m" stands for milli (10E-3) while "M" for "mega" (10E6), an essential
    difference -- and the recently adopted preffixes for >|21| magnitudes
    use precisely case to mark the signum difference (q.v. -- cannot check
    right now).

    (Anyway, the above "10E6", brings back the topic of letters as numbers:
    hexadecimal notation and >9 hack digit symbols, roman numerals, and this
    weird U+0045 standing for U+00D7 U+0031 U+0030 <sup>...)

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    <antonio@tuvalkin.web.pt> |####|
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