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Thread: What is the difference between R and -infinity to +infinity?

  1. August 14th 2011, 07:56 AM #1
    Splint
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    What is the difference between R and -infinity to +infinity?

    [COLOR=rgb(0, 0, 0)]Hi,[/COLOR][COLOR=rgb(0, 0, 0)]
    [/COLOR]    [COLOR=rgb(0, 0, 0)]
    I'm a bit confused. What is the difference between R and -infinity to +infinity.

    It sounds like the same set of numbers to me.

    Thanks
    Splint
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  2. August 14th 2011, 08:03 AM #2
    Plato
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    Re: What is the difference between R and -infinity to +infinity?

    Quote Originally Posted by Splint View Post
    I'm a bit confused. What is the difference between R and -infinity to +infinity.
    The difference is in the symbols.
    We use the symbol \mathbb{R} to denote the set of real numbers.
    So \mathbb{R}=\(-\infty,\infty).
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