Minimax approximation by rational fractions of the inverse polynomial type
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Rational fractions of the formR(x)/(c1 +c2x +c3x2 + ...) r are useful for approximating decay type functions over infinite and semi-infinite domains. A procedure is given which produces the optimal coefficients with no more effort than for linear approximations. No initial guess is needed for the values of the coefficients nor for the maximum error of approximation.
KeywordsComputational Mathematic Linear Approximation Initial Guess Maximum Error Rational Fraction
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