Calculating Pi with Real Pies - Numberphile
How accurately can we calculate Pi using hundreds of REAL pies? More links & stuff in full description below ↓↓↓ Extended version of this video (director's slice) at http://www.youtube.com/w...
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[MUSIC PLAYING] My goal is to not actually do any measurements other than using pie. So the entire thing is going to pie based. We get the circumference in the exact number of pies-- give or take-- we get the diameter in number of pies. Divide one by the other, we get pi. [MUSIC PLAYING] Pi was historically rarely calculated this way, because it's notoriously inaccurate to try and get-- I know, we're idiots-- it's notoriously inaccurate to try and calculate pi by measuring a circle. [MUSIC PLAYING] To get any kind of accuracy on our final answer we have to be as precise as we can be. [MUSIC PLAYING] This is a mild problem, because I want to go from the very edge of the circle. But as you can see, I've positioned all the pi...
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[MUSIC PLAYING] My goal is to not actually do any measurements other than using pie. So the entire thing is going to pie based. We get the circumference in the exact number of pies-- give or take-- we get the diameter in number of pies. Divide one by the other, we get pi. [MUSIC PLAYING] Pi was historically rarely calculated this way, because it's notoriously inaccurate to try and get-- I know, we're idiots-- it's notoriously inaccurate to try and calculate pi by measuring a circle. [MUSIC PLAYING] To get any kind of accuracy on our final answer we have to be as precise as we can be. [MUSIC PLAYING] This is a mild problem, because I want to go from the very edge of the circle. But as you can see, I've positioned all the pi...
