Pell's equation - Wikipedia

File:Pell's equation.svg - Wikipedia

Solving The Pell's Equation (x^2-dy^2=1)

Équation de Pell-Fermat — Wikipédia

2023 Number Challenge: Pell's Equation with d=2023

Archimedes's cattle problem - Wikiwand

What is meaning of 'The God Equation'? - Quora

The Great Oxidation Event: A cautionary climate change tale, by Jonathan Hester

Chakravala Method: Algorithm, Indeterminate equation, Quadratic equation, Pell's equation, Bh?skara II, Brahmagupta, Sanskrit, Mathematical induction, Lagrange, Continued fraction, Square root: 9786130236205 - AbeBooks

Pell Equation -- from Wolfram MathWorld

GitHub - jm8/all-the-algorithms: An implementation of all algorithms on Wikipedia's List of algorithms in Cython