e^(iπ) + 1 = 0: The Most Beautiful Theorem in Mathematics
3 min readOct 16, 2021
The equation above is called Euler’s identity where
- e: Euler’s number, the base of natural logarithms (2.71828 ……)
- i: imaginary unit, i² = −1
- π: pi, the ratio of the circumference of a circle to its diameter (3.14159 ……).
The Euler’s number e is often used in the field of analysis, and i is in algebra, and π is in geometry. Symbols that are usually used in different areas are included in one equation, and the only other numbers are the simple ones 0 and 1…
