source Ex.3: rho1=1/4, rho2=1/sqrt30  (segment hits: 0)
   A1: visited bins 296/400, bins not matched by the mirror image: 0 ; A2: visited bins 400/400, bins not matched by the mirror image: 0
rho1=1/3, rho2=(sqrt2-1)/4  (segment hits: 45308)
   A1: visited bins 252/400, bins not matched by the mirror image: 0 ; A2: visited bins 400/400, bins not matched by the mirror image: 0
rho1+2rho2=1, rho2=(sqrt2+3)/16  (segment hits: 137868)
   A1: visited bins 222/400, bins not matched by the mirror image: 0 ; A2: visited bins 42/400, bins not matched by the mirror image: 0
generic: rho1=1/pi, rho2=1/e^2  (segment hits: 61871)
   A1: visited bins 400/400, bins not matched by the mirror image: 0 ; A2: visited bins 400/400, bins not matched by the mirror image: 0
