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Computing Correctly Rounded Integer Powers in Floating-Point Arithmetic

Abstract : We introduce several algorithms for accurately evaluating powers to a positive integer in floating-point arithmetic, assuming a fused multiply-add (fma) instruction is available. We aim at always obtaining correctly-rounded results in round-to-nearest mode, that is, our algorithms return the floating-point number that is nearest the exact value.
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Preprints, Working Papers, ...
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Contributor : Jean-Michel Muller Connect in order to contact the contributor
Submitted on : Tuesday, May 13, 2008 - 11:01:09 AM
Last modification on : Saturday, September 11, 2021 - 3:17:10 AM
Long-term archiving on: : Friday, September 28, 2012 - 2:35:22 PM


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  • HAL Id : ensl-00278430, version 1



Jean-Michel Muller, Peter Kornerup, Christoph Lauter, Vincent Lefèvre, Nicolas Louvet. Computing Correctly Rounded Integer Powers in Floating-Point Arithmetic. 2008. ⟨ensl-00278430⟩



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