]> beta a , b = B a , b = Γ a Γ b Γ a + b beta a , b = a + g 0.5 a + b + g 0.5 a 0.5 b + g 0.5 a + b + g 0.5 b e b + g 0.5 L a L b L c beta a , b = a + g 0.5 a + b + g 0.5 a b 0.5 a + g 0.5 b + g 0.5 a + b + g 0.5 2 b e b + g 0.5 L a L b L c beta a , b = a + b b beta a , b + 1 beta a , b = a + b a + b + 1 a b beta a + 1, b + 1 i f a b a n d a + b = a t h e n : b e t a a , b = Γ b if a = 1 then: beta a , b = 1 b e l c l a l b l a l c a l b l c b