On Sun, Jul 19, 2009 at 7:33 PM, jim holtman<jholtman at gmail.com> wrote: > -8^1/3 is parsed as -(8^1)/3 = -2.66666 > However the following is evaluated as one would expect: > 8^(1/3) [1] 2 > -8^(1/3) [1] -2 Perhaps it is parsed in this way: > -(8^(1/3)) [1] -2 Liviu