curve fittings and data

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Last updated 1:50 PM on 4/27/26
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8 Terms

1
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What does polyfit do?

Fits polynomial to data

2
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polyfit(X,Y,2) gives what?

Quadratic fit

3
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Order of coefficients in polyfit?

Highest power → lowest

4
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What does least squares minimize?

Sum of squared errors

5
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Interpolation vs fitting:

Interpolation → exact fit, Fitting → approximate

6
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Degree of interpolation polynomial?

N = 1 (for N points)

7
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Exponential data becomes linear in:

(x, log y)

8
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Power law becomes linear in:

(log x, log y)