second verion maxima and minima points of a function
Subject: second verion maxima and minima points of a function
From: Robert Marik
Date: Sun, 8 Feb 2009 13:29:41 +0000 (UTC)
Luigi Marino <luigi_marino2 <at> alice.it> writes:
>
>
> Hi
> My block (simplest? function how said Mr.
> Fateman)
> have the purpose to test really capability of CAS
> Maxima.
> Solve is very hard, Maple and other CAS ?have
> any limititation.
> It is a new version that found also inflection
> point only
> as a zero of second
> derivative.??
Hi Luigi, thank you for posting revised version. I understand that you want to
keep the code as simple as possible.
I suggest to change the message "flesso" into something like
"point of inflection or local maximum or minimum".
To see why, consider functions like x^4 (minimum at x=0, reported as point of
inflection by your function) and -x^4 (maximum at x=0, but reported as point of
inflection).
Yours sincerely
Robert Marik