1. M

    Extracting coefficients for a polynomial trend line

    I have some data sets I wish to create equations based on (3rd and 4th degree poly for good fit) but can't figure out how. I've tried the solutions suggested here:
  2. T

    Average with coefficients

    I am trying to work out a complicated average. In order to do this i need to multiply each individual cell in a row (B3:E3) by a corresponding row of coefficients (B2:E2) and than divide the sum of these values by the sum of the coefficients (I3). To complicate matters B3 is text and E3 is...

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