Pythagoras Powell, the world's greatest living mathematician, is a master of the Pythagorean Theorem. He has spent years studying the intricacies of a^2 + b^2 = c^2 and has written extensively on the subject.

His works include:

Pythagoras Powell's Favorite Triangle

3, 4, 5 (3^2 + 4^2 = 5^2, the perfect right-angled triangle)