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Preprints, Working Papers, ... Year : 2024

Fast multiple precision exp(x) with precomputations


What is the most efficient way to compute the exponential function when allowing for the precomputation of lookup tables? In this paper we study this question as a function of the working precision and analyze both classical and asymptotically fast approaches. We present new complexity results, discuss efficient parameter choices and point out improvements that lead to speedups over existing implementations.
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hal-04454093 , version 1 (13-02-2024)


  • HAL Id : hal-04454093 , version 1


Joris van der Hoeven, Fredrik Johansson. Fast multiple precision exp(x) with precomputations. 2024. ⟨hal-04454093⟩
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