Question 284376
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A polynomial of degree 3 will exactly fit four data points.  Using curve fitting software:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ f(x)\ =\ (-9.5238095E-08)x^3\ +\ (0.00016666667)x^2\ +\ (0.046666667)x\ +\ 4.7619048]


Should be a close enough representation for just about any practical purpose.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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