c = - 0.4 + 0.6i
c = 0.285 + 0i
c = 0.285 + 0.01i
c = 0.45 + 0.1428i
c = - 0.70176 - 0.3842i
c = - 0.83 - 0.2321i
c = - 0.8 + 0.156i
c = - 0.7269 + 0.1889i
c = 0 - 0.8i