Calculate the y coordinate of a point of a elliptic curve with SAGE?

elliptic-curve, sage

Solution

sage: E.lift_x(1407284663933896236729058440000)

(1407284663933896236729058440000 : 4215171991512676773155222850458328 : 1)

I suggest that you read the Sage reference manual before asking more such questions here.

Problem

I defined with SAGE: ``` p=(10^34+1000).next_prime() E=EllipticCurve(GF(p),[0,57]) ``` My problem is: I know the x coordinate of a P of the Elliptic Curve 1407284663933896236729058440000 How can I calculate the y coordinate with SAGE?. Any function? ``` E([1407284663933896236729058440000, ??????]) ```

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