Euler’s identity is an equality found in mathematics that has been compared to a Shakespearean sonnet and described as "the most beautiful equation." It is a special case of a foundational equation in complex arithmetic called Euler’s Formula, which the late great physicist Richard Feynman called in his lectures "our jewel" and "the most remarkable formula in mathematics."
Read an article on Euler's equation here:
Read the article on LiveScience
listen to Carnegie Mellon professor of mathematical sciences Po-Shen Loh explains why Euler’s Equation is the most beautiful equation in math: