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This paper describes a method for computing the renewal function accurately without requiring much computation. Our method uses a combination of Pade approximants to evaluate the renewal function near the origin and switches to the asymptotic values farther from the origin. We have developed a polynomial switchover function in terms of the coefficient of variationn of the distribution which allows us to determine a priori if asymptotic value can be used instead of computing the Pade approximant.
By: Amit Garg and Jayant R. Kalagnanam
Published in: IEEE Transactions on Reliability, volume 47, (no 1), pages 66-72 in 1998
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