Pi (π)

Pi is a fundamental mathematical constant symbolizing the ratio between the circumference and diameter of a circle. It’s an irrational number, implying it’s non-repeating and non-terminating when expressed as a decimal. Approximately 3.14159, pi’s decimal expansion has been computed to trillions of digits. Its significance spans across mathematics, science, and engineering. The notion of pi dates back thousands of years, with ancient civilizations like the Egyptians. Archimedes, the Greek mathematician, is often credited with the earliest rigorous approximation of pi. He employed a method involving inscribed and circumscribed polygons to better understand the circle’s properties, laying the groundwork for subsequent advancements by scholars worldwide.