Jack Lew Signature Function

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On January 9, 2013, Jack Lew was nominated to be Secretary of the Treasury. His unusual signature could soon be on all new US currency. The signature can easily be modeled with sine and cosine functions via Fourier analysis (use the initial settings).

Contributed by: Michael Trott (January 2013)
Open content licensed under CC BY-NC-SA



The curve has parametric equations ; . You can adjust the coefficients using the controls.


[1] C. Pierce, "Jack Lew's Signature," The Politics Blog, Esquire (Jan 10, 2013). www.esquire.com/blogs/politics/jack-lew-signature-011013.

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