Lagrange's Four Square Theorem

Lagrange's Four Square Theorem

Euler Four-Square Identity -- from Wolfram MathWorld

Lagrange's four-square theorem

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

数论代考, 四平方和定理The four square theorem 代写

Solving Sums of Squares in Global Fields Proceedings of the 2022 International Symposium on Symbolic and Algebraic Computation

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

code golf - Four Squares Together - Code Golf Stack Exchange

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