CR-LIBM: a correctly rounded elementary function library

Catherine Daramy; David Defour; Florent de Dinechin; Jean-Michel Muller

doi:10.1117/12.505591

24 December 2003 CR-LIBM: a correctly rounded elementary function library

Catherine Daramy, David Defour, Florent de Dinechin, Jean-Michel Muller

Proceedings Volume 5205, Advanced Signal Processing Algorithms, Architectures, and Implementations XIII; (2003) https://doi.org/10.1117/12.505591
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We present a new elementary function library, called CR-LIBM. This library implements the various functions defined by the Ansi99 C standard. It provides correctly rounded functions: the returned result is always the floating-point number that is closest to the exact result. When writing this library, our primarily goal was to certify correct rounding, and make it reasonably fast, and with a low utilisation of memory. Hence, our library can be used without any problem on real-scale problems.

Citation Download Citation

Catherine Daramy, David Defour, Florent de Dinechin, and Jean-Michel Muller "CR-LIBM: a correctly rounded elementary function library", Proc. SPIE 5205, Advanced Signal Processing Algorithms, Architectures, and Implementations XIII, (24 December 2003); https://doi.org/10.1117/12.505591

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