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

Any natural number can be represented as the sum of the squares of four non-negative integers. For most numbers there are multiple representations. In this Demonstration the four integers (not squared) may be viewed using three different options.1. For each set of four numbers a polygon is displayed with vertices and .2. Each set is sorted from smallest to largest. The first two numbers a;;

What are your favorite results in mathematics that are also especially inelegant, ugly, or irritating to look at? : r/math

Math Garden: Pascal's Theorem

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

Green's Theorem as a planimeter - Ximera

Pourchet's theorem in action: decomposing univariate nonnegative polynomials as sums of five squares

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

How to check if given four points form a square - GeeksforGeeks

Dissecting a Square to Four Squares - Wolfram Demonstrations Project