# Ryan Pietropaolo

Ryan has taught at NCSSM for 12 years. He attended SUNY Geneseo as an undergraduate and Colorado State University for graduate school. Ryan currently teaches Calculus, Differential Equations, Multivariable Calculus, Combinatorics, and Abstract Algebra.

What is something you enjoy about teaching at NCSSM?

"I love teaching/being around students that are motivated to learn and willing to take chances in mathematics. I also love traveling and exploring new places with students during J-term."

Dr. Pietropaolo's Math Fun Fact

Did you know that .9999.... = 1? Well, let's prove it! We will let n = .9999..... Multiplying both sides by 10 yields, 9.9999.... = 10n. Now when we subtract the original equation from this new equation we get 9 = 9n or n = 1. We have just shown that n is equal to both .9999.... and 1, hence .9999..... = 1!