Tangent to the Lemniscate
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Cartesian equation : |
(x2+y2)2=(x2-y2) |
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Parametric equation : |
x = a cost / (1+sin2t) , y = a sint cost / (1+sin2t) |
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Polar equation : |
r = cos 2t |
See Also :
Related Page :
from MathWorld : http://mathworld.wolfram.com/Lemniscate.html
Famous Curve Index : http://www-groups.dcs.st-and.ac.uk/~history/Curves/Lemniscate.html