Computes the difference of two points.
i1 : E=ellCurve(3,8,GF(13)) o1 = Elliptic Curve defined by Y^2 = X^3 + 3 X + (-5) over (GF 13). o1 : EllipticCurve |
i2 : P=ellPoint({1,5,1},E) o2 = Point {1, 5, 1} on the (Elliptic Curve defined by Y^2 = X^3 + 3 X + (-5) over (GF 13).) o2 : EllPoint |
i3 : Q=ellPoint({2,3,1},E) o3 = Point {2, 3, 1} on the (Elliptic Curve defined by Y^2 = X^3 + 3 X + (-5) over (GF 13).) o3 : EllPoint |
i4 : P-Q o4 = Point {-4, -6, 1} on the (Elliptic Curve defined by Y^2 = X^3 + 3 X + (-5) over (GF 13).) o4 : EllPoint |