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Cannot compile equation in LaTeX- Help with code please!

  1. Nov 11, 2012 #1
    I have been trying to get this equation to work in my LaTeX document, I do not really see any issues with it so if somebody could give some guidance that would be really helpful.

    Code (Text):
    {\bf{R}} = \sum_{i=1}^{N}_{{\bf{u}}_{i}}
    Thank you
    Last edited: Nov 11, 2012
  2. jcsd
  3. Nov 11, 2012 #2
    Sorry! No need for help, I figured out what was wrong!
  4. Nov 11, 2012 #3
    I had trouble figuring out the dollar signs as well.
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