Math 180	Continued fractions and geometric coding	Course Flier
Description	An upper-level undergraduate topics course on an interface between number theory and geometry, taught by Moon Duchin, with TAs Gabe Amos and Dustin Pluta.
Materials	Problem sets: One, Two, Three, Four, Five, Six, Seven (on handout), Eight, Nine Selected solutions Minitests: One, Two, Three, Four
Sources	Artin's Algebra, Chapter 5, "Symmetry" David Angell's text Irrationality and Transcendence: Chapter 4, "Continued Fractions" Allen Hatcher's course notes for an elementary-level seminar on numbers and geometry: Part One, Part Two, Part Three. My handouts introducing the hyperbolic plane: Handout One, Handout Two For reference, a rigorous short book on hyperbolic geometry (Cannon-Floyd-Kenyon-Parry)
Links	Continued fraction calculator Wikipedia: transcendental number Lester Ford's original 1938 article on Ford Circles A short paper by Doris Schattschneider on a funky multiplicative metric An expository article on Lorenz and modular flow where you should see lots of familiar notions (and some cool movies) Watch Stephen Colbert discuss Perelman's work on geometrization: Part One, Part Two

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