Pythagorean Theorem

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 #

Chit-chat on Lagrange's four-square theorem

Table 3 from Extended Lagrange's four-square theorem

Jacobi's four-square theorem

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

PDF) Quarternions and the Four Square Theorem

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

Chapter 3 Greek Number Theory The Role of Number Theory Polygonal, Prime and Perfect Numbers The Euclidean Algorithm Pell's Equation The Chord and Tangent. - ppt download

Lagrange's three square theorem

Lagrange's Four-Square Theorem by Julian TSE