Class: harmonograph
http://www.astro.umd.edu/~eshaya/astro-ont/owl/geometry.owl#harmonograph
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shape
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two-D_Shape
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curveOnPlane
- harmonograph
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curveOnPlane
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two-D_Shape
Annotations
- definition: "Path of double pendulum at a right angle Curves generated by the parametric equations x(t) = A(t)cos(wx*t - deltax y(t) = B(t)sin(wy*t - deltay Where A and B decay exponentially with time." (string)