Heart Curve/Formulation 3

Theorem

 * $\begin{cases}

x = & \map \sin t \map \cos t \ln \size t \\ y = & \size t^{0.3} \sqrt {\cos t} \end{cases}$ where $t \in \hointr {-1} 0 \cup \hointl 0 1$.


 * HeartCurve3.png