Dr. Daniel Orr Finds Pi in Surprising Places
March 5, 2020
On 3.14, we celebrate all things π by revisiting Professor Andy Norton's interview with Professor Daniel Orr on suprising appearances of π. Did you know that π isn't just about circles and geometry? Dr. Orr explains how π pops up in a probability problem about prime numbers.
Question: what is the probability that two whole numbers will be relatively prime (share no common factors)?
Answer: 6/π^{2}
As Dr. Orr explains, this solution comes from the Riemann zeta function.
Don't forget the College of Science Virginia Tech Pi Day 5K Challenge is today  that’s 3.14 miles. Whether you plan to run, swim, bike your 3.14 miles – it’s bound to be great!

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