What Is Pi Used For Today?

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Pi is used in navigation. When a plane flies over a distance it does not fly in a straight line, it flies in an "arc length".  It is also used in statistics with the different types of graphs "bell curves".  Also, with the signal transmission, like: Radio waves, designing microwaves, ect. It also helps calculate things in advanced physics, like the universes expansion.  "M" theory uses it quite a bit.  Is the membrane that is our universe a wave? Possibly and the dark energy might be nothing more than our section of universe approaching an wave arch's max.; thus giving the illusion of expansion at a exponential rate.
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Exact value of pi
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Dress making, bike making, car making, cake/ pie/ pizza making and sprinkler designing
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It's the ratio of the circumference of any circle to the diameter of that circle
or
if no matter if you make a bigger circle the ratio will be 3.141592653589793238 (pi)
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You can use pi in many ways.  To find the 3D area of a space, for example.  So to speak, not uses of using pi, but ways of using it.

Thank you for your interest in pi!!!  Keep learning!

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