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regular (positive) Pell equation is x^2 - D*y^2 = +1. negative Pell equation is x^2 - D*y^2 = -1. if you have a solution (x,y) to the neg...
regular (positive) Pell equation is x^2 - D*y^2 = +1. negative Pell equation is x^2 - D*y^2 = -1. if you have a solution (x,y) to the neg...
