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 TOPICS This page:   definitions    Search   Dr. Math See also the Internet Library:   dictionaries COLLEGE Algorithms Analysis Algebra    linear algebra    modern algebra Calculus Definitions Discrete Math Exponents Geometry    Euclidean/plane      conic sections/        circles      constructions      coordinate plane      triangles/polygons    higher-dimensional      polyhedra    non-Euclidean Imaginary/Complex   Numbers Logic/Set Theory Number Theory Physics Probability Statistics Trigonometry Browse College Definitions Stars indicate particularly interesting answers or good places to begin browsing. Transfinite Numbers [11/07/1997] I know that Georg Cantor discovered transfinite numbers, but what are they? Two Definitions of Limits, with Examples [05/11/1998] Epsilon-delta definitions of the limit of a function and the limit of a sequence. Unit and Basis Vectors in Three Dimensions [05/09/1998] Explanations and uses of unit vectors and basis vectors. What Are Differential Equations? [12/17/2003] Can you please tell me what differential equations are? Why do they have two variables? Why are the solutions formulas and not numbers? What Does a Twofold Increase Mean? [01/23/2004] Is a twofold increase simply twice the amount? What about a threefold increase? I'm not used to this terminology of using 'fold.' Does it refer to powers or multiples? What is a Functional Transformation? [08/11/2002] I would like a brief definition of a functional transformation and what an application is in early Calculus. Page: [

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