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Whjat does R^n mean

  1. Nov 4, 2007 #1
    I am now in a Linear algebra class and don't understand the whole idea of transformations and[tex]R^{2}[/tex] [tex]R^{3}[/tex]. I really cant elaborate more as I don't have a clue.


    R meaning Reals
     
  2. jcsd
  3. Nov 4, 2007 #2

    cristo

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    Well, [itex]\mathbb{R}^2=\mathbb{R}\times\mathbb{R}[/itex] where the times here is the Cartesian product. So, [itex]\mathbb{R}^n[/itex] is the set of all n-tuples; i.e. (x_1,x_2,...,x_n) such that x_i is a real number.
     
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