Welcome to the web site of the 27th IEEE International Symposium on Computer Arithmetic, to be held in Portland, Oregon, USA, on June 7-10, 2020.

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Since 1969, the ARITH symposia have served as the primary and reference conference for presenting scientific work on the latest research in computer arithmetic. The topics of the conference include theoretical aspects, number systems, algorithms for operations, implementations and applications of computer arithmetic. See the archives page for more information on previous symposia.