Strophoid Drawn with Carpenter's Square
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Cartesian equation : |
y2 = x2(a - x) / (a + x) |
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Parametric equation : |
x = cos 2t , y = tan t cos 2t |
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Polar equation : |
r = cos2t sect |
Reference :
R.C. Yate, Curves and Their Properties, pp. 219.
See Also :
Related Page :
from MathWorld : http://mathworld.wolfram.com/RightStrophoid.html
Famous Curve Index : http://www-groups.dcs.st-and.ac.uk/~history/Curves/Right.html