|Bill Allombert on Tue, 12 Jun 2012 12:08:11 +0200|
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On Tue, Jun 12, 2012 at 12:45:04PM +0300, Ahmad Kamal wrote: > Hello > > I want to ask a question related to elliptic curves: > > Is there any method to compute the x coordinate if we have the y coordinate > using pari\gp? Yes, you can use factor/polroots/polrootsmod to find the solutions of the equation in x. Cheers, Bill.