(-1)^2 = 1 (-1)^1 = -1 (-1)^0 = 1 (-1)^(-1) =-1 (-1)^(0/2) = 1 (-1)^(1/2) = i(もしくはj) (-1)^(2/2) = -1 (-1)^(3/2) = -i(もしくは-j) (-1)^(4/2) = 1 かな？