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How to distribute product sign across base and exponent terms

  1. Jun 26, 2009 #1
    I am calculating the likelihood of a hierarchical model and am having trouble distributing the product sign.

    Here are the two expressions that I'm interested in:

    Product from j=1 to j_k of: (t_jk)^(sum(Z_ijk) + a_k - 1)


    Product from k=1 to K of: (b_k)^(j_k*a_k).

    The tricky part for me is distributing the product sign across the base and the exponent terms simultaneously. Is it possible?

  2. jcsd
  3. Jun 28, 2009 #2
    This does not answer your question, but if you use "tex" tags around the equation you can use latex syntax and it is much easier for everyone to read: e.g.
    [tex]\sum_{j=1}^{j_k}t_{jk}^{\sum Z_{ijk} + a_k - 1}[/tex]
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