curve fitting formula

  1. M

    Indexing LINEST formula coefficients non-redundantly

    Hello all, What I find online about how to find LINEST formula coefficients in EXCEL cells (NOT VBA) is introducing INDEX function directly on LINEST function like below: Equation: y = (c2 * x^2) + (c1 * x ^1) + b c2: =INDEX(LINEST(y,x^{1,2}),1) C1: =INDEX(LINEST(y,x^{1,2}),1,2) b =...

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