Textbook in PDF format In Math Cats, mathematician and professor Daniel Look, along with a clowder of his feline friends, reveals the charming connections between mathematics and cats with 22 fun and fur-filled lessons. We know all cats are cute, but only some are acute. Others are obtuse (no offense) and more are always right (and never let you forget it), as you'll learn by exploring how kitties represent different types of angles. When they curl out for a mid-day catnap, they perfectly represent the concept of a golden spiral. And when they squeeze into too small boxes or balls, they're providing a geometric lesson in topological equivalence