Equation Icon  ( [ 1 1 1 ] ) T ′ = Exp L −1 --𝒜abc(t)Eabc + --𝒜a1 ⋅⋅⋅a6(t)Ea1 ⋅⋅⋅a6 + --𝒜a|b1⋅⋅⋅b8(t)Ea |b1⋅⋅⋅b8 + ⋅⋅⋅ L [ 3! 6! 9! ] 1- ′ abc 1- ′ a1⋅⋅⋅a6 1- ′ a|b1⋅⋅⋅b8 = Exp 3!𝒜 abc(t)E + 6!𝒜a1⋅⋅⋅a6(t)E + 9!𝒜 a|b1⋅⋅⋅b8(t)E + ⋅⋅⋅ , (9.121 )