source 2007 Bernstein--Lange
appliesto jacobian-3
compute YY = Y1^2
compute ZZ = Z1^2
compute YYYY = YY^2
compute M = 3 (X1-ZZ) (X1+ZZ)
compute MM = M^2
compute E = 12 X1 YY-MM
compute EE = E^2
compute T = 16 YYYY
compute U = (M+E)^2-MM-EE-T
compute X3 = 4 (X1 EE-4 YY U)
compute Y3 = 8 Y1 (U (T-U)-E EE)
compute Z3 = (Z1+E)^2-ZZ-EE
