Re: math alphabets, WAS: Proprietary Card Decks

From: John W Kennedy (jwkenne@attglobal.net)
Date: Fri Apr 15 2011 - 14:46:58 CDT

  • Next message: Hans Aberg: "Re: math alphabets, WAS: Proprietary Card Decks"

    On Apr 15, 2011, at 2:06 PM, Asmus Freytag wrote:
    >> For example, a/b might be written like that, but it might be written (still inline) with 'a' over 'b' and a horizontal stroke between. In addition, there is "a over b" which does not have such a stroke (but normally parenthesizes). So one might have a character telling that two parts should be grouped over each other.
    >
    > Just FYI, that distinction is presentational, not semantic, where fractions are concerned.

    Actually, it's semantic:

    a+b 

    ---
c+d
is not equal to:
a+b/c+d
-- 
John W Kennedy
"Give up vows and dogmas, and fixed things, and you may grow like That. ...you may come to think a blow bad, because it hurts, and not because it humiliates.  You may come to think murder wrong, because it is violent, and not because it is unjust."
  -- G. K. Chesterton.  "The Ball and the Cross"

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