Pell's equation: Difference between revisions

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=={{header|Mathematica}} / {{header|Wolfram Language}}==
=={{header|Mathematica}}/{{header|Wolfram Language}}==
<lang Mathematica>FindInstance[x^2 - 61 y^2 == 1, {x, y}, PositiveIntegers]
<lang Mathematica>FindInstance[x^2 - 61 y^2 == 1, {x, y}, PositiveIntegers]
FindInstance[x^2 - 109 y^2 == 1, {x, y}, PositiveIntegers]
FindInstance[x^2 - 109 y^2 == 1, {x, y}, PositiveIntegers]