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Parallels

Published online by Cambridge University Press:  22 September 2016

P. J. Giblin
P. J. Giblin*
Affiliation:
Department of Pure Mathematics, The University, Liverpool L69 3BX
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Extract

Given a straight line L in the plane, how can we find all lines parallel to L? Here is one way: at each point P of L draw a straight line perpendicular to L. Now choose a number d and measure a distance d down these lines, always in the same direction. Joining up the points P′ so obtained gives the parallel to L at distance d.

Type
Research Article
Information
The Mathematical Gazette , Volume 66 , Issue 435 , March 1982 , pp. 28 - 30
Copyright
Copyright © Mathematical Association 1982

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