The anchors at Wake Up Charolotte! think today is all about pie, pi being a mystery to them. |
How students can celebrate Pi Day outside of the classroom
(Project Shivoham) The Evolution of π in Ancient India (12/14/21) This is the 5,000-year-old history of the evolution of π in Ancient India. (Twitter or
Instagram)
What does Wiki, the default repository of all knowledge and wisdom, have to say about pi? Wiki is the modern hitchhiker's guide to life, the universe, and everything, as conceived of by the genius humorist Douglas Adams.
What is pi?
May the Fourth be with you. No, that's a different thing. Danica!
π ("pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.
The number π appears in many formulas across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although fractions such as 22/7 are commonly used to approximate it.
Consequently, its decimal representation never ends, nor does it enter a permanently-repeating pattern. It is a transcendental number, meaning that it cannot be a solution of an equation involving only sums, products, powers, and integers.
The devas and ETs who came to earth knew |
The decimal digits of π appear to be randomly distributed, but no proof of this conjecture has been found [or proved].
For thousands of years, mathematicians have attempted to extend their understanding of π, sometimes by computing its value to a high degree of accuracy.
Ancient civilizations, including the Egyptian and Babylonian [possibly based on the much older Sumerian] required fairly accurate approximations of π for practical computations. Around 250 BC, the Greek mathematician Archimedes created an algorithm to approximate π with arbitrary accuracy.
Out of the mouths of babes: Tell us, Babe. |
In the 5th century AD, Indian mathematicians made a five-digit approximation, while Chinese mathematicians approximated π to seven digits, both using geometrical techniques.
The first computational formula for π, based on infinite series, was discovered a millennium later [1, 2]. The earliest known use of the Greek letter π to represent the ratio of a circle's circumference to its diameter was by the Welsh mathematician William Jones in 1706 [3].
If E had asked, B could have answered. |
The invention of calculus soon led to the calculation of hundreds of digits of π, enough for all practical scientific computations.
Buddha+Einstein Walk Into Bar |
Because its definition relates to the circle, π is found in many formulas in trigonometry and geometry, especially those concerning circles, ellipses, and spheres. [*Yawn* Kill me now.]
Vegan gluten-free blueberry! |
In modern mathematical analysis, it is often instead defined without any reference to geometry; therefore, it also appears in areas having little to do with geometry, such as number theory and statistics.
The ubiquity of π makes it one of the most widely known mathematical constants inside and outside of science.
Several books devoted to π have been published, and record-setting calculations of the digits of π often result in news headlines.
[There's even a National Pi Day to celebrate it. And for some strange reason, or complete coincidence, scientist Stephen Hawking let go and left this world on this day in 2018. Make mine vegan, gluten-free blueberry.] More
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