Results 1 to 2 of 2

Math Help - Evaluating gradient

  1. #1
    Junior Member
    Joined
    Mar 2008
    From
    Perth
    Posts
    26

    Evaluating gradient

    find the gradient of f(x,y)=7*x^5*y^2-9*x^8*y^6

    Evaluate the gradient of f at the point P, where
    f(x,y,z)=x^4*y^3*z, P(-1,3,-1)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Oct 2005
    From
    Earth
    Posts
    1,599
    Quote Originally Posted by samdmansam View Post
    find the gradient of f(x,y)=7*x^5*y^2-9*x^8*y^6

    Evaluate the gradient of f at the point P, where
    f(x,y,z)=x^4*y^3*z, P(-1,3,-1)
    Ok. So the gradient is just a vector field of the partial derivatives. For #1) grad F = (df/dx , df/dy). And those are partial derivatives of course.

    #2) grad F = (df/dx, df/dy, df/dx) and once you get your vector field plug in the particular case of point (-1,3,1) that they want.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Gradient
    Posted in the Pre-Calculus Forum
    Replies: 7
    Last Post: November 1st 2009, 01:52 AM
  2. gradient
    Posted in the Calculus Forum
    Replies: 1
    Last Post: November 2nd 2008, 05:43 PM
  3. Gradient
    Posted in the Geometry Forum
    Replies: 3
    Last Post: June 18th 2008, 01:58 AM
  4. Gradient of f(x,y)
    Posted in the Calculus Forum
    Replies: 2
    Last Post: April 30th 2008, 04:28 AM
  5. Gradient
    Posted in the Calculus Forum
    Replies: 2
    Last Post: January 10th 2008, 05:30 PM

Search Tags


/mathhelpforum @mathhelpforum