John von Neumann once claimed, "with 4 parameters, I can fit an elephant, and with 5, I can make him wiggle his trunk."
\[x(t)=\displaystyle\sum_{k=0}^\infty\left(A_k^x\cos(kt)+B_k^x\sin(kt) \right)\]
\[y(t)=\displaystyle\sum_{k=0}^\infty\left(A_k^y\cos(kt)+B_k^y\sin(kt) \right)\]
Here's a paper proving that von Neumann's claim is valid! 🔗 https://aapt.scitation.org/doi/10.1119/1.3254017
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