Math for designing lasers becomes artist’s key to creating complex crease patterns Though the art of origami is centuries old, until the late 20th century it was considered virtually impossible to make insects or other figures with many long, complex protrusions. That changed with the introduction of math-based origami design, which Lang helped pioneer. Today, he’s still drawn to the challenges presented by insects and other arthropods, and they are well-represented in the menagerie of his origami gallery. After uncovering the mathematical underpinnings of origami, Robert Lang left a 20-year e…