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On Fast Computation of Continued Fractions (1991)

by Ömer Egecioglu ,  Cetin K. Koc ,  Josep Rifa I Coma
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Abstract:

We give an O(log n) algorithm to compute the nth convergent of a periodic continued fraction. The algorithm is based on matrix representation of continued fractions, due to Milne-Thomson. This approach also allows for the computation of first n convergents of a general continued fraction in O(log n) time using O(n/log n) processors.

Citations

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1 Fast Computation of Periodic Continued Fractions – Chung, Chen, et al. - 1989
1 The Calculus of Finite Dierences, 2nd Unaltered Edition – Milne-Thomson - 1981