Perhaps this is the kind of thing you want?
sage: var('x')
sage: f = -x^4 + 9*x^3 - 23*x^2 + 31*x - 15
sage: f.find_maximum_on_interval(0,6)
(69.216599407272753, 4.6263272799362944)
If you do
sage: f.find_maximum_on_interval?
you can get the documentation for that. For symbolic answers you
could do
sage: solve(diff(f,x)==0,x)
but of course that is more limited in what it can answer.
-Marshall Hampton
On Nov 26, 7:49 pm, "Johann \"Myrkraverk\" Oskarsson"
<[email protected]> wrote:
> Hello all,
>
> Given a function f(x), what is the best way to find its maximum value
> on an interval [a,b]? Do I have to differentiate and do it manually?
>
> Johann
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