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    Re: Are we all doing our math correctly?
    From: Paul Hirose
    Date: 2017 Jul 12, 21:49 -0700

    On 2017-07-11 19:58, Sean C wrote:
    > if you're using Windows, you can open the "Character Map" (just type 
    "character" in the search bar), select a Unicode font and search for the 
    character(s) you need.
    But note that Character Map doesn't necessarily include all available
    characters. I don't know why. For instance, on my system I don't see
    Unicode "angle" (∠) and "spherical angle" (∢).
    A sure place to find an unusual character is the applicable code chart
    from the Unicode site:
    That's a lot of charts! But for our purposes only a few are needed:
    http://www.unicode.org/charts/PDF/U0000.pdf (ASCII)
    http://www.unicode.org/charts/PDF/U0080.pdf (Latin-1 punctuation)
    http://www.unicode.org/charts/PDF/U2000.pdf (general punctuation)
    http://www.unicode.org/charts/PDF/U2200.pdf (mathematical operators)
    The code charts include an instance of each character, which you can
    copy and paste into another document. In addition they include cross
    references to similar characters which may be more appropiate. For
    example, the entry for ASCII slash (the official name is "solidus") has
    pointers to the Unicode "division slash" and "fraction slash" characters.
    For detailed discussion of character usage, see the Unicode standard
    itself. The chapters most applicable to math symbols are 6 and 22.
    There are many Web pages on Unicode mathematical characters. This one
    shows the characters at a nice large size. Hover the mouse pointer on an
    unfamiliar character and it tells you the name.

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