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Conference Papers Year : 2003

Worst Cases and Lattice Reduction


We propose a new algorithm to find worst cases for correct rounding of an analytic function. We first reduce this problem to the Real Small Value Problem --- i.e. for polynomials with real coefficients. Then we show that this second problem can be solved efficiently, by extending Coppersmith's work on the Integer Small Value Problem --- for polynomials with integer coefficients --- using lattice reduction. For floating-point numbers with a mantissa less than N, and a polynomial approximation of degree d, our algorithm finds all worst cases at distance $
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Dates and versions

inria-00099572 , version 1 (26-09-2006)


  • HAL Id : inria-00099572 , version 1


Damien Stehlé, Vincent Lefèvre, Paul Zimmermann. Worst Cases and Lattice Reduction. 16th IEEE Symposium on Computer Arithmetic 2003 - ARITH-16'03, 2003, Santiago de Compostela, Espagne, pp.142-147. ⟨inria-00099572⟩
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