Solved {(x,y,z,w).M: x,y,z, w € Z} Theorem 8.35 (Lagrange's

Lagrange's four-square theorem - Wikipedia

Sums of four squares — AnhThu Nguyen

Euler's four-square identity

5. * In the following sequence of problems, we will

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.

number theory - The Four Square Theorem and Integral Apollonian Circle Packings, is there any connection? - Mathematics Stack Exchange

SOLVED: In the following sequence of problems, we will start the proof of the Four-Square Theorem conjectured in the third century by Diophantus and proven by Lagrange in 1770 (since it took

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

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