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What is this symbol? ordered field

  1. Oct 25, 2011 #1
    It looks like an F, but it also has an e

    [PLAIN]http://img98.imageshack.us/img98/2161/unledbto.jpg [Broken]

    It means like ordered field

    Thanks
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Oct 25, 2011 #2

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    Could it be a script F?

    [PLAIN]http://www.decodeunicode.org/en/data/glyph/196x196/2131.gif [Broken]
     
    Last edited by a moderator: May 5, 2017
  4. Oct 25, 2011 #3
    There is no e in yours and it looks like yours is bolded
     
  5. Oct 25, 2011 #4

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    I thought that perhaps the e might actually be the kind of loop you see on my F.

    Sorry that it is bolded. :blushing: It was just the first F I could find that had such a loop.


    As an alternative it might be a H...

    [PLAIN]http://typophile.com/files/H_6027.gif [Broken]

    or

    [URL]http://images.inmagine.com/img/valueclips/unc269/u26688036.jpg[/URL]

    I found one with flowers! :biggrin:
     
    Last edited by a moderator: May 5, 2017
  6. Oct 25, 2011 #5
    OKay but what is it called?
     
  7. Oct 25, 2011 #6
    H, pronounced "aych":biggrin:
    In what context does it appear? Preferably, post the expression.
     
  8. Oct 25, 2011 #7
    I tried [tex]\aych[/tex]

    Nothing

    It appears in Ordered Field
     
  9. Oct 25, 2011 #8

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    Since it is supposed to represent an (ordered) field, I think F, pronounced "ef", which is the first letter of "field".
     
  10. Oct 25, 2011 #9
    [tex]\ef[/tex]

    [tex]\ofield[/tex]

    None of them are working
     
  11. Oct 25, 2011 #10
    Unless it is an H, in which case mayhaps it refers to the quaternions? (it would be a strange font, though...)

    It's just a stylized letter, it can mean whatever you want. It isn't going to be under "/field" or anything like that.
     
  12. Oct 25, 2011 #11

    Deveno

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    appears....where?
     
  13. Oct 25, 2011 #12
    Math, Ordered Field, it appears in
     
  14. Oct 25, 2011 #13
    Quote the passage in which it appears.
     
  15. Oct 25, 2011 #14

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    It seems you're trying Latex?

    That would be:
    [tex]\mathscr F[/tex]
    or
    [tex]\mathcal F[/tex]
     
  16. Oct 25, 2011 #15
    it kinda looks like it, but is it correct to use it?
     
  17. Oct 25, 2011 #16

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    Hmm, this may seem a bit repetitive, but I have to ask... use it when and where? :confused:
     
  18. Oct 25, 2011 #17

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    Oh, and as for the name, perhaps the Unicode name "SCRIPT CAPITAL F" (code U02131) covers it?
     
  19. Oct 25, 2011 #18
    for ordered fields.
     
  20. Oct 25, 2011 #19

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    Yes, you can use script capital F for an ordered field.
     
  21. Oct 25, 2011 #20
    what about [tex]\mathbb{F}[/tex]? is that just for normal fields and not ordered ones?
     
  22. Oct 25, 2011 #21

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    I'm not aware of any convention for the typography to represent a field.
    This means you can use any typeface you want.
    Most common seems to be simply italic F ([itex]F[/itex]).

    Also, there's no distinction in typography for an ordered field.
     
  23. Oct 25, 2011 #22
    The notation [itex]\mathbb{F}[/itex] is used sometimes for field. But mostly for finite field. So the field with 9 elements is often written as [itex]\mathbb{F}_9[/itex].

    If we are working with arbitrary fields, then it seems that F, K and L are the most common notations for fields. With F standing for field, K standing for Korper (german) and L standing for Lichaam :biggrin:
     
  24. Oct 25, 2011 #23

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    Ah finally someone who knows it by a name that I'm familiar with. :approve:
    Won't this make you eligible for you-know-what?
    Also, it gives your statement that you're living in a field a new meaning! :biggrin:
     
  25. Oct 25, 2011 #24
    There was once a PhD defense in my university. The title was "special places on fields", but then in dutch. The auditorium was packed until they realized that it was about mathematics.
     
  26. Oct 25, 2011 #25

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    lol. Did you already post that in Lame jokes?
     
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