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In classical geometry, the limaçon generated by the polar equation ρ = a + b cos θ can appear as a dimpled curve, a loop, or — in the special case where a = b — a cardioid.
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In classical geometry, the limaçon generated by the polar equation ρ = a + b cos θ can appear as a dimpled curve, a loop, or — in the special case where a = b — a cardioid.
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