Waring's Problem -- from Wolfram MathWorld

Chit-chat on Lagrange's four-square theorem

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

PDF) Lagrange's Four-Square Theorem

Sums of four squares — AnhThu Nguyen

RISIBUES 221 orem 8.35 (Lagrange's Four-Square

Pythagorean Theorem

Lagrange's three square theorem

Why was this visual proof missed for 400 years? (Fermat's two square theorem)

PDF) Sums of four squares and Waring's Problem

SOLVED: In the following sequence of problems, we will start the proof of the Four-Square Theorem conjectured in the third century by Diophantus and proven by Lagrange in 1770 (since it took