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Re: max and min

  • To: mathgroup at smc.vnet.net
  • Subject: [mg87449] Re: [mg87431] max and min
  • From: "W_Craig Carter" <ccarter at mit.edu>
  • Date: Fri, 11 Apr 2008 01:41:06 -0400 (EDT)
  • References: <200804100614.CAA10569@smc.vnet.net>

Dear Ary,
Your question is a bit difficult to interpret. Sin[x y] has maxmin = {-1,1}
for x and y reals.


However, I believe this example my help you out.  It will find "some" of the
maxima, but not all.

FindMaximum[(1 + Sin[x  y])/(2 + Cos[y]), {{x, 1}, {y, 2}}]

Here x and y will be real numbers.

To find all max/min--inima, you could take derivatives symbolically and
Solve symbolically

Cheers, Craig

On Thu, Apr 10, 2008 at 2:14 AM, Ary Adilson Morales Alvarado <
amorales at lme.usp.br> wrote:

> Dear friends,
>
> How I can to obtain the maximum and minimum values in a function like a
> Sin, but that varying their frequency with the time.
>
> Thanks in advanced,
>
> Ary
>
>
>
> --
> This message was scanned for spam and viruses by BitDefender.
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-- 
W. Craig Carter



  • References:
    • max and min
      • From: "Ary Adilson Morales Alvarado" <amorales@lme.usp.br>
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