# Pell's Equation

x^2 - n y^2 = 1

(Pell's equation) which is named after the English mathematician John Pell. It was studied by Brahmagupta in the 7th century, as well as by Fermat in the 17th century.

http://en.wikipedia.org/wiki/Pell%27s_equation

x^2 - n y^2 = 1

(Pell's equation) which is named after the English mathematician John Pell. It was studied by Brahmagupta in the 7th century, as well as by Fermat in the 17th century.

http://en.wikipedia.org/wiki/Pell%27s_equation

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