Polar Plots Drawn by a Mechanical Linkage

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This Demonstration simulates the drawing of polar plots by means of an open mechanical linkage. The three polar plots considered are of the form with
. These can be interpreted as the sum of up to three vectors with
as magnitudes and
as directions, and can be simulated by an
-bar open linkage
, with
as the direction of the driver bar.
Contributed by: Erik Mahieu (February 2017)
Open content licensed under CC BY-NC-SA
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"Polar Plots Drawn by a Mechanical Linkage"
http://demonstrations.wolfram.com/PolarPlotsDrawnByAMechanicalLinkage/
Wolfram Demonstrations Project
Published: February 13 2017