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Irregular Curves
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Description: "Curves other than arcs of circles are drawn with the pencil or ruling pen by means of curved or irregular-shaped rulers, called irregular curves. A series of points is first determined through which the curved line is to pass. The line is then drawn through these points by using such parts of the irregular curve as will pass through several of the points at once, the curve being shifted from time to time as required." — Hallock, 1905
Source: V. I. Hallock, I. C. S. Reference Library: Arithmetic (Scranton: International Textbook Company, 1905)
Keywords: Irregular, Curve, Arc, Circle, Pencil, Pen, Shape, Ruler,
Copyright: 2008, Florida Center for Instructional Technology. See license.
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