What Is the Number of Pi?

The number, or more accurately the value, of pi is either 22/7 or its equivalent of approximately 3.1415926. Pi is a mathematical constant, which has its value as the ratio of a circle's circumference to its diameter.
The value of pi to 5 decimal places is 3.14159. Pi is an irrational number, so it cannot be expressed as an exact fraction and its decimal representation has no end.
The Greek letter pi was first used to represent the ratio of the circumference of a circle to its diameter in 1709 by mathematician William Jones.
The number pi is defined as the ratio of the circumference to the diameter of a circle which is approximately equal to 3.14. The numbers after the decimal point keep recurring and there was a computer scientist who claims to have computed the mathematical constant pi to nearly 2.7 trillion digits which makes him a record holder.
Pi is a term given to the ratio of the circumference of a circle to its diameter. That is, the distance around the circle or the circumference can be divided by the diameter to get exactly the same number.
Q&A Related to "What Is the Number of Pi"
 The number for pi is approximately equal to 3.14159. It is a mathematical constant that's value is the ratio of a circle's circumference to its diameter. http://answers.ask.com/Science/Mathematics/what_nu...
 1. Write down the Gregory Series. The series appears as: Pi = 4sum[1)k + 1)/(2k - 1) k = 1 . infinity] Expressed in plain English, the relationship says that the constant Pi is equal http://www.ehow.com/how_7503343_calculate-number-p...
 That's just the way it worked out. Pi is the ratio of the circumference of a circle to its diameter, and it just worked out that this ratio is an irrational number. http://wiki.answers.com/Q/Why_is_pi_not_a_rational...
 Pi is considered to be such an important number in mathematics because of its many intriguing properties. First, it is transcendental, meaning that it is not the root of any polynomial http://www.quora.com/Why-is-Pi-regarded-as-such-an...
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