Lagrange's four-square theorem - Wikipedia

MathType on X: Lagrange's four-square theorem asserts that any positive whole number can be written as the sum of four squares of integers. Leave an example in the comments! #MathType #NumberTheory #math #

Table 1 from Extended Lagrange's four-square theorem

PDF) Two refinements of Lagrange's four-square theorem

Jacobi's four-square theorem - Wikipedia

GitHub - crteezy/java-lagrange-four-square-algorithm: Lagrange's four-square theorem algorithm using Java recursion

Square Number Definition & Meaning

PDF) Quarternions and the Four Square Theorem

Lagrange's Four Square Theorem

Sum of Squares Function -- from Wolfram MathWorld

Euler's four-square identity - Wikipedia