[Rd] Multiplication (PR#8466)

[Thomas Lumley]

On Fri, 6 Jan 2006, casella at stat.ufl.edu 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

Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle