Happy Birthday to the legendary Leonhard Euler, born on this day, April 15, 1707!
Widely considered one of the greatest analytical minds in history, his genius gave us the most beautiful equation in mathematics: e^{iπ} + 1 = 0.
As seen in the image, this single elegant identity connects five of the most fundamental constants in the universe.
He practically invented the language of modern math (f(x), Σ, e, i, π), founded graph theory with the Seven Bridges of Königsberg, and revolutionized calculus and number theory. Even after losing his sight, his publishing pace only accelerated; proof that his vision went far beyond the physical world.
Today we celebrate a brilliant mind that forever shaped how we understand the universe.
What’s YOUR favorite mathematical concept introduced by Euler?