Lagrange's four-square theorem - Wikiwand

Sum of four Squares

Table 1 from Extended Lagrange's four-square theorem

Lagrange's four-square theorem

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

FERMAT'S FOUR SQUARES THEOREM Several years ago, after

GitHub - HechenHu/Four-Square_Representation: Using Rabin and Shallit's Algorithm to compute the four-square representation of a natural number as stated in Lagrange's Four-square Theorem.

RISIBUES 221 orem 8.35 (Lagrange's Four-Square

Sum of squares, Part-2, Sum of four squares

An Independent Quaternion Proof of Jacobi's Four Square Theorem: Zhang, Yuxuan: 9781719171571: : Books

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