It is impossible to arrive at an exact value for pi because the digits that make up its decimal neither end nor repeat, according to Scientific American. It is therefore an irrational number, and the closest value that can be asserted is an approximation.
Know MoreShigeru Kondo, a Japanese systems engineer, and Alexander Yee, a U.S. computer scientist, collaborated to build a special computer that took over a year to calculate pi to the 10 trillionth digit. Extensive calculations of this sort are useful for testing the integrity of supercomputers and highly precise multiplication algorithms, but generally speaking, most scientific applications require no more than 40 decimal places.
Learn more about AlgebraPi is used today in practical applications that include astronomy, physics, engineering and architecture. The task of computing pi to billions or trillions of decimal points is often used as a speed test for supercomputers.
Full Answer >The identity of the first person to discover that the ratio between the diameter and the circumference of a given circle is a constant will probably never be known. The search for that constant, commonly known as pi, goes back nearly 4,000 years, to the Egyptians and Babylonians.
Full Answer >The square root of pi, like pi itself, is an irrational number. It can be approximated to four decimal places by 1.7725. The factorial of 1/2 is equal to half of the square root of pi.
Full Answer >According to Math Open Reference, pi is a mathematical constant obtained by dividing the circumference of any circle by its diameter. Pi is about 22/7 or 3.142. However, no one knows its exact value.
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