>>>>> "Paolo" == Maths Mathematica Geometry Crew <mathematica@linfe.it> writes: Paolo> Maybe my reminiscences of complex algebra are poor, but i wonder how Paolo> to make maxima evaluate Paolo> (-1)^(1/6) One way: (C1) (-1)^(1/6); 1/6 (D1) (- 1) (C2) rectform(d1); %I SQRT(3) (D2) -- + ------- 2 2 Paolo> which should yield %i I hope not. Ray