Symbol Definition and 366 Threads

  1. W

    Transformation law for Christoffel symbol of first kind

    Hi, I have met a problem, that is how to prove transformation law for Christoffel symbol of first kind. I have read books about that, but many of them just state: cyclic permutation of the 3 indices and substitution. When I tried to work out, I could not elimate some terms... Can anyone show...
  2. A

    The Mysterious Name of the Integral Symbol: A Mystery Solved?

    What is the actual name for the integral symbol? I know it was first used by Leibniz, but did he actually call it anything...? It's really hard trying to convince my friends the integral symbol is the sexiest thing ever invented, when I don't even know her true name. :blushing:
  3. L

    What does this symbol stand for?

    4πε0r^2 Thats 4pi (backwards 3 0) R squared. I forget what the backwards 3 o stands for can someone help me out
  4. L

    What does this symbol stand for?

    4πε0r^2 Thats 4pi (backwards 3 0) R squared. I forget what the backwards 3 o stands for can someone help me out.
  5. T

    Math Symbol "Enigma" - Does it Represent "There Exists"?

    "Enigma" Is this the correct name for a math symbol that represents the phrase, "There exists"? I believe it's something like an 'E'.
  6. A

    Formal definition of what the symbol 0

    hellooooooooooo everybody ! can anyone please prove the following : 0! = 1 cheers abc
  7. S

    Very simple symbol question regarding a logarithmic function (I can't find it)

    Well I have this leftwards arrow in my book describing the solution to a logarithmic function and I've not seen it thus far and (if I was ever introduced to it) have since forgot what it means! When asked to find log(3)9 3^x = 9 3^x = 3^2 <--x = 2 log(3)9 = 2 I'm not sure what the...
  8. Loren Booda

    HTML/CSS Symbol html on Netscape and Explorer

    "Symbol" html on Netscape and Explorer Apparently my recently installed Netscape 7.2 does not translate to Greek my website html symbol code, where Explorer had. Why is this so, and how can I either make Netscape translate or choose Explorer as my default browser for executing my FTP document...
  9. P

    What is the significance of the Christoffel symbol as a tensor?

    On page 34 of General Relativity, Robert Wald, the author refers to the Christoffel symbol as a tensor of rank (1,2). That whole derivation that led to that is quite involved so I don't quite understand how Wald can say that the Christoffel symbols are tensors since normally one does not refer...
  10. C

    Unknown symbol in a fuzzy logic equation

    Hi people I study on image processing and fuzzy logic. When I working on histogram normalization, I saw an equation which includes a symbol 'U' letter. On the bottom of the 'U' (m=1) and on the top of the 'U' (K) is written. And i want to learn what its (U) mean. Thanks in advance...
  11. C

    Why the symbol c was chosen to represent the speed of light

    Anyone knows why the symbol c was chosen to represent the speed of light in vacuum? Or is there no reason really?
  12. D

    Why is there no symbol for partial integration?

    When you are solving exact differential equations you want to do the opposite of partial differentiation, And when you apply Leibniz's integration I have seen an example were there was an integral symbol (with respect to x) and they treated the other variable as a constant. Is the notation...
  13. F

    Does the integral symbol have a name?

    I find myself continually referring to this: \int as the 'integral-symbol-thingy'. Does it have a name? I asked my math teacher; he said it has a name but he couldn't remember it.
  14. D

    Why Nabla Symbol Not Listed Under Math Symbols

    Under the list of math symbols, nabla doesn't show up (the upside down triangle). Why is that? I just use &#9660 instead.
  15. dawidi

    A symbol for scientific knowledge?

    I was wondering how it could be possible to make some other ("sci-fi" thinking, I know...) intelligent lifeform aware of human knowledge and scientific status by means of a symbol or something - assuming of course that this other lifeform can interpret two-dimensional vector graphics as a means...
  16. Dissident Dan

    Word games #2) Fallacies in Symbol Replacement

    This is the first thread in what may or may not be a series, depending on logical topics that I think need to be addressed. I want people to understand the fallacies of certain "word games" so they can stop wasting time with fallacioius arguments. Let's start with what I call symbol...
Back
Top