q=0.1900  T=0.898772  2tau=0.784602  worst margin -8.101e+00 at a1=0.76 a2=0.50 ratio=10.013668  #bad=2
   bad a1=0.76 a2=0.50 ratio=10.013668
   bad a1=0.78 a2=0.48 ratio=10.013668
