Sum of four Squares

Lagrange's Four-Square Theorem, PDF, Number Theory

Table 3 from Extended Lagrange's four-square theorem

PDF) A Simple Proof of Jacobi's Four-Square Theorem

PDF) Extended Lagrange's four-square theorem

PDF) Algebraic Consequences of Jacobi's Two- and Four-Square Theorems

Solved QUADRA range's Four-Square Theorem) If n is a natural

Lagrange's 4 Square Theorem using Python

Number Theory Sums of Squares Part 7.

Euler Four-Square Identity -- from Wolfram MathWorld

MathType - Lagrange's four-square theorem states that every natural number can be represented as the sum of four integer squares. Proved by Joseph Louis #Lagrange in 1770, it can be regarded as