On Tue, 24 Jun 2003, kjetil brinchmann halvorsen wrote: > On 23 Jun 2003 at 20:20, Prof Brian D Ripley wrote: > > > Why is this a bug? If you take apply floor to a number that you expect to > > be exactly 3, but compute it on a binary computer via logs to base e, you > > must expect some rounding error. > > > > BTW, on my Windows XP machine I do get > > > > > floor(log10(1000)) > > [1] 3 > > > > On my windows XP machine (R1.7.1) i get: > > > floor( log10(1000) ) > [1] 2 > > > Why this difference between different XP machines?
Different DLLs, no doubt. Possibly also different chips. The real question is why *you* expected them to be the same? -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
