Thanks Herve Pages wrote:
> Thomas Lumley wrote: > >> On Fri, 6 Jan 2006, [EMAIL PROTECTED] wrote: >> >> >> >>> hi - in version 2.1 the command >>> >>> >>> >>>> -2^2 >>>> >>> >>> gives >>> >>> -4 >>> >>> as the answer. (-2)^2 is evaluated correctly. >>> >> >> >> So is -2^2. The precedence of ^ is higher than that of unary minus. >> It may be surprising, but it *is* documented and has been in S for a >> long time. >> >> >> -thomas >> >> > No, it's not surprising. At least to me... > In the country where I grew up, I've been teached that -x^2 means -(x^2) > not (-x)^2 ;-) > > H. > -- George Casella Phone: (352) 392-1941 Ext. 204 Distinguished Professor and Chair Cell: (352) 682-7210 Department of Statistics Fax: (352) 392-5175 University of Florida Email: [EMAIL PROTECTED] P.O. Box 118545 Gainesville, FL 32611-8545 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
