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Floor Not An Integer?
I'm trying to use some of the NumericalMath approximations such as MiniMaxApproximation and RationalInterpolation with a function that includes array references of the form Array[[Floor[x]]]. The function plots and evaluates just fine but the NumericalMath functions are reporting the error: "Part::pspec: Part specification Floor[x] is neither an integer nor a list of integers." whereas the documentation states that Floor[x] IS an integer. What am I missing? Thanks for any insight. Cheers, Scott