q=0.2200  T=0.913899  2tau=0.828493  worst margin -8.086e+00 at a1=0.62 a2=0.62 ratio=9.847915  #bad=4
   bad a1=0.62 a2=0.62 ratio=9.847915
   bad a1=0.64 a2=0.60 ratio=9.847915
   bad a1=0.66 a2=0.58 ratio=9.847915
   bad a1=0.68 a2=0.56 ratio=9.847915
