python - Scipy: difference between optimize.fmin and optimize.leastsq -

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what's difference between scipy's optimize.fmin , optimize.leastsq? seem used in pretty same way in this example page. difference can see leastsq calculates sum of squares on own (as name suggest) while when using fmin 1 has manually. other that, 2 functions equivalent?

different algorithms underneath.

fmin using simplex method; leastsq using least squares fitting.


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