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Do Dogs Know the Trammel of Archimedes?
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Schwartz, Mark – College Mathematics Journal, 2011
The refraction problem, well-known in calculus and physics, continues to reveal new insights. This paper presents a geometric solution in which the trammel of Archimedes plays the prominent role. When properly configured, the trammel generates an ellipse and its family of normal lines. One normal line in particular intersects the boundary…
Descriptors: Animation, Computer Graphics, Geometric Concepts, Geometry
Software Reviews.
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Greenwell, Raymond; And Others – College Mathematics Journal, 1987
Reviews for three software packages are given. Those packages are: 20/20 Statistics, Graphing Equations, and COMPUCALC. The first package is a set of programs for use in introductory statistics, the second contains four programs for studying the graphing of equations, and the third contains examples and techniques from calculus. (PK)
Descriptors: Calculus, College Mathematics, Computer Assisted Instruction, Computer Graphics