橢球坐標系坐標變換關係 (a2+x)(a2+1)(a2+v x (a2-b2)(a2-c2) (b2+1)(b2+1)(b2+y) (b2-a2)(b2-c2) 2_(C2+1)(c2+)(c2+y) (c2-a2)(c2-b2) λ>-c2>1>-b2>y>-a2 𝑥 2 = 𝑎 2+𝜆 𝑎 2+𝜇 𝑎 2+𝜈 (𝑎2−𝑏2)(𝑎2−𝑐 2)  𝑦 2 = (𝑏 2+𝜆)(𝑏 2+𝜇)(𝑏 2+𝜈) (𝑏 2−𝑎2)(𝑏 2−𝑐 2)  𝑧 2 = (𝑐 2+𝜆)(𝑐 2+𝜇)(𝑐 2+𝜈) (𝑐 2−𝑎2)(𝑐 2−𝑏2)  𝜆 > −𝑐 2 > 𝜇 > −𝑏 2 > 𝜈 > −𝑎 2