Not Pure At All: Euler's Other Calculations

The Hulk is having an existential crisis over Leonhard Euler, the 18th-century Swiss mathematician who somehow managed to produce both groundbreaking mathematical formulas AND 13 children. While most mathematicians today struggle to remember eating lunch, Euler was out there calculating infinite series between diaper changes. His famous equation e^iπ + 1 = 0 connects five fundamental constants, but apparently he was also establishing some constants of his own at home. The man gave us complex analysis, graph theory, and enough offspring to form a small academic department. No wonder the Hulk's crying—he can barely manage his anger issues, let alone revolutionize multiple fields of mathematics while running a nursery.