Why Pi? by Johnny Ball

Why Pi?



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Why Pi? Johnny Ball ebook
Publisher: DK
ISBN: 9781465443878
Page: 96
Format: pdf


» First mathematician to use the Greek letter π to represent the important ratio. Sep 4, 2014 - 6 minCorrection: when I mark where pi is on the graph, I meant pi/2! And this year marks a once-in-a-century occurrence. Because [math] \dfrac{22}{7} [/math] isn't pi. Pi Day is a holiday for math (and pie) enthusiasts to celebrate their love of numbers. Well, the date is 3/14/15 and at that time, the date and time together would have been the same as the first ten digits of Pi: 3.141592653. Pi represents the ratio of the circumference of a circle to its diameter. The real question is why not Pi Kappa Phi? This year's pi day is a once-in-a-century celebration. As everybody knows pi=L/(2*R)=L/D is the ratio of the circumference to the diameter for any circle. Pi (π) is the ratio of the circumference of a circle to its diameter. €�So it's fair to ask: Why do mathematicians care so much about pi?” Read the excellent article by Steven Strogatz about infinity and more.





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