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. -- ------------------------ Hervé Pagès E-mail: [EMAIL PROTECTED] Phone: (206) 667-5791 Fax: (206) 667-1319 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
