s1,3(4)⁢c2,3(4)⁢c3,3(4)+s2,3(4)⁢c3,3(4)⁢c1,3(4)+s3,3(4)⁢c1,3(4)⁢c2,3(4)=κ⁢(κ+2)1-κ2⁢(s1,3(4)+s2,3(4)+s3,3(4)).