Lagrange's Four Square Theorem

Least Number of Perfect Squares that Sums to n - Algorithms and Problem SolvingAlgorithms and Problem Solving

Lagrange's Four Square Theorem

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

Lagrange's Four-Square Theorem -- from Wolfram MathWorld

Solved In Number Theory, Lagrange's four-square theorem

RISIBUES 221 orem 8.35 (Lagrange's Four-Square

Solved Theorem 8.35 (Lagrange's Four-Square Theorem) If n is

Waring's Problem -- from Wolfram MathWorld

Problem 3. Let ( r _ { 4 } ( n ) ) be the number of ways you can write ( n ) as of four squares of non-negative integers. It's

PDF] New parametrization of $A^2+B^2+C^2=3D^2$ and Lagrange's four-square theorem