#2607: find_minimum_on_interval() uses the wrong scipy function
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Reporter: AlexGhitza | Owner: jwmerrill
Type: defect | Status: new
Priority: major | Milestone: sage-4.7.1
Component: calculus | Keywords: sd31
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by kcrisman):
Here's another example where `brent` does better.
{{{
sage: j(x) = sin(x^8)-.1*x
sage: optimize.brent(j._fast_float_(x),brack=(0,2),full_output=True)
(2.0000389609484905, -1.2000038913452364, 22, 23)
sage: optimize.fminbound(j._fast_float_(x),0,2,full_output=True)
(1.5288339777087034, -1.152883200877608, 0, 16)
}}}
Of course, this does cause problems for my supposed algorithm to then go
back to an endpoint, since it's ''just'' outside of it...
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2607#comment:14>
Sage <http://www.sagemath.org>
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