Subject: show gradient vectors orthogonal to level curves
From: G. Jay Kerns
Date: Wed, 21 Oct 2009 13:59:01 -0400
Jaime,
Thank you very much for the prompt reply. How could it have been simpler?!?!?!
Thanks again.
Jay
On Wed, Oct 21, 2009 at 1:48 PM, Jaime Villate <villate at fe.up.pt> wrote:
> On Qua, 2009-10-21 at 18:31 +0100, Jaime Villate wrote:
>> I am trying to demonstrate that gradient vectors are orthogonal to
>> > contour lines.
>
>> Please try the following:...
>
> You can also get the plot you want with the following command:
>
> ?ploteq(y^2-x^2,[x,y],[x,-3,3],[y,-3,3],[vectors,"blue"]);
>
> and then click on a few points.
>
> Jaime
>
>
--
***************************************************
G. Jay Kerns, Ph.D.
Associate Professor
Department of Mathematics & Statistics
Youngstown State University
Youngstown, OH 44555-0002 USA
Office: 1035 Cushwa Hall
Phone: (330) 941-3310 Office (voice mail)
-3302 Department
-3170 FAX
VoIP: gjkerns at ekiga.net
E-mail: gkerns at ysu.edu
http://people.ysu.edu/~gkerns/