1 / 5

The History of Pi

The History of Pi. By John Wallace. What is Pi?. Pi is the ratio of the circumference of a circle to its diameter. Pi is approximately 3.14159265358979323 The equation for pi is (∏ = C/D). The History of Pi.

traci
Télécharger la présentation

The History of Pi

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The History of Pi By John Wallace

  2. What is Pi? • Pi is the ratio of the circumference of a circle to its diameter. • Pi is approximately 3.14159265358979323 • The equation for pi is (∏ = C/D)

  3. The History of Pi • Pi was discovered by the first civilizations for basic engineering skills. The first records were from ancient Babylon. They calculated by taking 3 times the square of radius and gat 3.125 or 25/8. • Later Archimedes found the first theoretical calculation. He would inscribe a circle in a regular polygon and a regular polygon in the circle. He got more accurate measurement of pi as 3.1485 • The Greeks, Egyptian's, Mayans, Indians, and Chinese all had a ratio for pi. • William Jones in 1706 was the first to write pi as ∏ and was adopted in 1737 by Euler as the official symbol. • It wouldn’t be till today that a exact calculation of pi consisting of thousands of digits would come from computers.

  4. How Pi is Used to Solve a Problem • Pi can be used to find the circumference, diameter, and radius of a circle. • For example if you need to find the circumference of something you can use the equation (C = D x ∏). If it has a diameter of four feet then the equation is (C = 4 x ∏). • With this you can find the answer which is 12.5.

  5. Resources • http://www.exploratorium.edu/pi/history_of_pi/index.html • http://ualr.edu/lasmoller/pi.html • http://library.thinkquest.org/C0110195/history/history.html • http://www.pcworld.com/article/191389/a_brief_history_of_pi.html

More Related