On Sat, Feb 13, 2010 at 2:17 PM, cjmr <cjregu...@gmail.com> wrote: >>p=1e-49 >>1+p > [1] 1 >
Try this: > source("http://r-bc.googlecode.com/svn/trunk/R/bc.R") > p <- bc(1e-49) > p [1] ".0000000000000000000000000000000000000000000000001" > 1+p [1] "1.0000000000000000000000000000000000000000000000001" You might want to check this [1] and search the archives for "precision". Liviu [1] http://code.google.com/p/r-bc/ > My problem comes from some values of x for the value: > 1-exp(-sum((x-1/sqrt(3))^2)) > the return values are always equivalent. > > Please help > Thanks > -- > View this message in context: > http://n4.nabble.com/Help-for-numbers-close-to-1-in-R-tp1554416p1554416.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > -- Do you know how to read? http://www.alienetworks.com/srtest.cfm http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader Do you know how to write? http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail ______________________________________________ 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.