Zhao Shuang's String Diagram and Geometric Proof of the Pythagorean Theorem

This example demonstrates Zhao Shuang's String Diagram, a classic geometric figure used by the ancient Chinese mathematician Zhao Shuang to prove the Pythagorean theorem. By constructing four congruent right triangles and a central small square, it visually illustrates the area dissection method, showing that the sum of the squares of the two legs equals the square of the hypotenuse (a² + b² = c²)