Equation Icon  i i i i 1- i j k χ = χ 𝔥(χ¯, ξ) = ¯χ + ξ − 2 Γjk(¯χ)ξ ξ + ... (B.26 ) ξi = ξi(¯χ,χ ) = − (χ¯− χ)i + 1-Γ i (¯χ)(¯χ − χ )j(¯χ − χ )k + ... 𝔥 2 jk