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Packages » EllipticCurves :: - EllPoint

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- EllPoint

Synopsis

Operator: -
Usage:

-P
Inputs:
- P
Outputs:
- an instance of the type EllPoint

Description

Computes the inverse of a point.

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 : -P

o3 = Point ({1, -5, 1}( on the (Elliptic Curve defined by Y^2 = X^3 + 3 X + (-5)( over(GF 13 .)))))

o3 : EllPoint

Ways to use this method:

- EllPoint
- EllPointW