On 26 September 2013 11:30, Rainer M Krug <rai...@krugs.de> wrote: >>>> Why doesn't return me 0?
It isn't R question at all. You might want to read about representing real numbers in a computer using floating point http://en.wikipedia.org/wiki/Floating_point If you want more precision for some reason, you may want to use Rmpfr package from CRAN, for example > require(Rmpfr) > pii <- mpfr(pi, 1200) > sin(pii) 1 'mpfr' number of precision 1200 bits [1] 1.22464679914735317722606593227499799708305390129979194948825771626086960997325810377509325527569013655456428540074414189136673810003656057935764118217436637676835016019778833613838580470703060741630570066750947925902443295873487819032259435513861185501796412843027607796970259523768923503206248925733373776859085615900203929142965774524665617260404787862664073939e-16 > | > Is that a Fortune? And, if so, should R be using computers? Don't blame R for real numbers. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
