[SciPy-user] fminbound vs. brent
Neil Muller
drnlmuller+scipy at gmail.com
Mon Dec 1 07:29:11 EST 2008
On Mon, Dec 1, 2008 at 2:01 AM, Gideon Simpson <simpson at math.toronto.edu> wrote:
> Based on the documentation, I'm a bit unclear on how fminbound and
> brent, as optimization algorithms, differ. Could someone clarify this
> for me?
brent doesn't do constrained optimisation, while fminbound does.
Consider:
In [1]: import scipy.optimize as opt
In [2]: f = lambda x: x*x
In [3]: opt.brent(f, brack=(3, 4))
Out[3]: 0.0
In [4]: opt.fminbound(f, x1=3, x2=4)
Out[4]: 3.00000596086
Hope that helps.
--
Neil Muller
drnlmuller at gmail.com
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