 CARMA COLLOQUIUM
 Speaker: Prof Stephen Glasby, Department of Mathematics, Central Washington University
 Title: Insights into rational numbers through computation and geometry
 Location: Room V129, Mathematics Building (Callaghan Campus) The University of Newcastle
 Time and Date: 2:00 pm, Mon, 13^{th} Dec 2010
 Abstract:
Rational numbers can be represented in many different ways: as a fraction, as a M"obius function, as a 2x2 matrix, as a string of L's and R's, as a continued fraction, as a disc in the plane, or as a point in the lattice Z^2. Converting between the representations involves interesting questions about computation and geometry. The geometries that arise are hyperbolic, inversive, or projective.
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