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I'm trying to figure out what the summation notation of

  1. Oct 13, 2011 #1
    I'm trying to figure out what the summation notation of

    (1-x1)^θ * (1-x2)^θ * .....(1-xn)^θ would be for summation

    I know I need to convert this to a summation notation in order to solve my problem, but I can't figure out how to convert it. Any help will be appreciated.
     
  2. jcsd
  3. Oct 14, 2011 #2

    Mark44

    Staff: Mentor

    Re: Summation

    As you have written this, it's not a sum - it's a product. In a summation, the terms are added. In a product, the factors are multiplied.

    For example, you can write 12*22*32*...*n2 as a product like this:
    [tex]\prod_{k=1}^n n^2[/tex]
     
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