A fast algorithm for repeated computation of linear recurrence relations |
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Authors: | Jozef Mikloško |
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Affiliation: | (1) Institute of Technical Cybernetics, Slovak Academy of Sciences, Dubravská 1, 809 31 Bratislava, Czechoslovakia |
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Abstract: | Let the calculation of thenth term of a general recurrence relation requireO(q(n)) arithmetical operations. The derivation is given of a new algorithm that performsm repetitions of this calculation with different initial conditions requiring onlyO(q(n)) +O(m) operations. The application of this algorithm to accelerate the calculation of continued fractions and the solution of three- and five-diagonal systems of linear equations, is also described. |
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