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2. 33 Pi Day deals for a slice of savings on 3.14 - AOL

   www.aol.com/news/32-pi-day-deals-slice-030000872...

   Here are all the best food deals on Pi Day, March 14, on pie, pizza and beyond from Taco Bell, Burger King, DoorDash, Pizza Hut and more chains. 33 Pi Day deals for a slice of savings on 3.14 Skip ...

3. Pi - Wikipedia

   en.wikipedia.org/wiki/Pi

   The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.

4. Pi Day - Wikipedia

   en.wikipedia.org/wiki/Pi_Day

   Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (the 3rd month) since 3, 1, and 4 are the first three significant figures of π , and was first celebrated in the United States.

5. List of mathematical constants - Wikipedia

   en.wikipedia.org/wiki/List_of_mathematical_constants

   Pi: 3.14159 26535 89793 23846 [Mw 1] [OEIS 1] Ratio of a circle's circumference to its diameter. 1900 to 1600 BCE [2] Tau: 6.28318 53071 79586 47692 [3] [OEIS 2] Ratio of a circle's circumference to its radius. Equal to : 1900 to 1600 BCE [2] Square root of 2,

6. 3.14: How will you celebrate National Pi Day this Thursday? - AOL

   www.aol.com/3-14-celebrate-national-pi-213522044...

   All whole pies are available as 10-inches, some 12-inch pies are available, too. Prices range between $13.99-14.99. Springfield's Hy-Vees are located at 1720 W. Battlefield Road and 2150 E ...

7. List of formulae involving π - Wikipedia

   en.wikipedia.org/wiki/List_of_formulae_involving_π

   where C is the circumference of a circle, d is the diameter, and r is the radius.More generally, = where L and w are, respectively, the perimeter and the width of any curve of constant width.

8. Mathematical constant - Wikipedia

   en.wikipedia.org/wiki/Mathematical_constant

   The circumference of a circle with diameter 1 is π.. A mathematical constant is a number whose value is fixed by an unambiguous definition, often referred to by a special symbol (e.g., an alphabet letter), or by mathematicians' names to facilitate using it across multiple mathematical problems. [1]

9. William Jones (mathematician) - Wikipedia

   en.wikipedia.org/wiki/William_Jones_(mathematician)

   William Jones, FRS (1675 – 1 July 1749 [1]) was a Welsh mathematician best known for his use of the symbol π (the Greek letter Pi) to represent the ratio of the circumference of a circle to its diameter. He was a close friend of Sir Isaac Newton and Sir Edmund Halley.