Equation Icon  α [ b 1 2 b 1 2 b c 3] α ea = δ a + -s a (t)aa(t) + --s R a0c(t)ω + O (s ) ¯eb [ 2( ) 2 ] + − s 1 − 1-sabωb aa(t) + 1s2˙aa(t) − 1s2Ra0b0(u)ωb + O (s3) ¯eα0. (11.10 ) 2 2 2