Pi+project+ZD


 * Pi**

Mathmatitions! This web page shows questions, information, and links about **π**. Make sure it doesn't fall into the wrong hands.

//What is **π**? What language does **π** come from?//

Pi is a mathematical term where **π** x Diameter = Circumference. The pi symbol, or **π**, is the 16th letter from the greek alphabet.

//When was pi first used?//

Use of the letter pi was first proposed by William Jones in 1706. That the ratio of the circumference to the diameter of a circle is the same for all circles, and that it is slightly more than 3, was known to Ancient Egyptian, Babylonian, Indian and Greek geometers. Archimedes (287–212 BC) was the first to estimate π rigorously by inscribing circles between polygons and calculated their perimeters. Archimedes' Pi aproximation

//What kind of number is pi?//


 * π** is an irrational number, which means that its value cannot be expressed exactly as a fraction //m/////n//, where //m// and //n// are integers.

//What formulas use **π**?//

The formula that use **π** is the ratio of the circumference of a circle to its diameter.

//How do you calculate **π**?//

The irrational number **π** can be computed to an infinite number of decimal places. It expresses the ratio of the circumference of a circle to its diameter, a relationship which cannot be framed in terms of whole numbers.


 * Links for π**

Here are to links to the pi song below.

[]

[]

Below is a link to knowing more about how to calculate **π** useing polygons like Archimedes.

[]

Here is a crazy link with a way to calculate **π** useing frozen hot dogs! Enjoy!

[]

Here's another link for **π**.

[|**http://ww2.wyomingcityschools.org/powpak/cgi-bin/frame.pl?page=links_page.pl&id=tubbsj**]

This a link to a website with 1,000,000 digits of **π**.

[]