On 2010-02-16 09:14:58 +0100, Christoph Groth wrote: > I am aware of the limited precision of floating point calculations. > However, I assumed that on the processors in question these calculations > are done according to IEEE standards, i.e. the results of are defined > unambiguously. Note that the old IEEE 754-1985 standard didn't consider elementary functions such as sin and cos (only +, -, *, / and square root). The current IEEE 754-2008 standard recommends that (some) elementary functions be correctly rounded, but that's only a recommendation. -- Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
