Pythagorean Theorem

What's so interesting about squared numbers? Lagrange's Four Square Theorem

PDF) Quarternions and the Four Square Theorem

Waring's Problem & Lagrange's Four-Square Theorem

Four Square Theorem - Quaternions, PDF, Prime Number

Chapter 3 Greek Number Theory The Role of Number Theory Polygonal, Prime and Perfect Numbers The Euclidean Algorithm Pell's Equation The Chord and Tangent. - ppt download

Answered: The Modular Operation r mod m = r…

Sum of Squares Function -- from Wolfram MathWorld

Solved 4. [12 marks] The Modular Operation x mod m = r

Waring's Problem -- from Wolfram MathWorld

Lagrange's Four-Square Theorem Seen Using Polygons and Lines - Wolfram Demonstrations Project