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MF78: Calculus on the unit circles

We illustrate algebraic calculus on the simplest algebraic curves: the unit circle and its imaginary counterpart. Starting with a polynumber/polynomial of two variables, the derivation of the Taylor polynumber, subderivatives, Taylor expansion around a point [r,s] and various tangents are analogous to the case of a polynumber/polynomial of one variable. We get tangent planes and tangent lines both corresponding to the first tangent.The algebraic derivation is illustrated with three-dimensional diagrams involving the associated elliptic paraboloid to the unit circle.The background noise in parts of the video is due to crickets, common in the Australian summer---sorry about that. I will tell them to keep it down next time.This lecture is part of the MathFoundations series, which tries to lay out proper foundations for mathematics, and will not shy away from discussing the serious logical difficulties entwined in modern pure mathematics. The full playlist is at http://www.youtube.com/playlist?list=PL5A714C94D40392AB&feature=view_all
Length: 35:20

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