Pythagorean Theorem

Table 1 from Extended Lagrange's four-square theorem

Lagrange's four-square theorem

Table 3 from Extended Lagrange's four-square theorem

SOLVED: Theorem 8.35 (Lagrange's Four-Square Theorem) then n can be expressed as the sum If n is a number; of four squares: natural lattice A in 4-space is a set of the

Lagrange's four-square theorem

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

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

2023 Number Challenge: Find sum of four squares that is equal to 2023

PDF) Sums of four squares and Waring's Problem

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