On the Numerical Evaluation of Legendre's Chi-function
نویسندگان
چکیده
Legendre's chi-function, Xn(z) = 2"D¡tlo zlk+l/(2k + 1)" , is reexpanded in a power series in powers of log z . The expansion obtained is well suited for the computation of Xn(z) in the two cases of real z close to 1, and z = ela , a e R . For n = 2 and n = 3 , the present computational procedure is shown to be superior to the procedure recently proposed by Dempsey, Liu, and Dempsey, which uses Plana's summation formula.
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