htswanalysis/MACS/lib/gsl/gsl-1.11/doc/examples/polyroots.out

   1 z0 = -0.809016994374947451 +0.587785252292473137
   2 z1 = -0.809016994374947451 -0.587785252292473137
   3 z2 = +0.309016994374947451 +0.951056516295153642
   4 z3 = +0.309016994374947451 -0.951056516295153642
   5 z4 = +1.000000000000000000 +0.000000000000000000