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  1. status

    Excel Trendlines

    Ah - Solved my own problem. Thanks for the formulae - top dollar!
  2. status

    Excel Trendlines

    Please can someone show me how this formula works. Equation: y = (c3 * x^3) + (c2 * x^2) + (c1 * x^1) + b c3: =INDEX(LINEST(y,x^{1,2,3}),1) c2: =INDEX(LINEST(y,x^{1,2,3}),1,2) C1: =INDEX(LINEST(y,x^{1,2,3}),1,3) b: =INDEX(LINEST(y,x^{1,2,3}),1,4) I've been using the auto generated formula...

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