### Pi Day Celebration

A celebration of everyone's favorite real number (π). We will be watching a film about a mathematician relating to pi.

Lunch will be served.

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### Fun with Number Theory

Lecture by Professor Marty Lewinter, Professor Emeritus of Mathematics, Purchase College and Dean of Mathematics, Learn America. http://home.earthlink.net/~mjlewin/

We will examine classes of numbers including squares, triangular numbers, primes, Fibonacci numbers, and more. Various beautiful properties and identities will be presented. The only prerequisite is high school algebra.

Lunch will be served.

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### PageRank

Lecture by Dr. Sandra Kingan, Brooklyn College Department of Mathematics. http://userhome.brooklyn.cuny.edu/skingan PageRank is Sergey Brin and Larry Page’s algorithm that launched Google, Inc. It is based on concepts from Linear Algebra and Graph Theory covered in undergraduate courses. We will discuss this algorithm including the background required. Lunch will be served.

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### Math Club Introductory Meeting

Come and meet fellow students interested in mathematics and learn how you can get involved in the Math Club. Solve some math challenges while you are at it. See you there!

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### Four Proofs of the Infinitude of Primes

Abstract: We will discuss one of the most beautiful theorems in all of mathematics – the infinitude of primes. We will give four proofs with variations: Euclid's indirect proof, Euler's analytic proof, Furstenberg's topological proof, and Chaitin's complexity proof. These proofs reflect, to some degree, the evolution of techniques in number theory and in mathematical proofs in general.