Results 1 to 2 of 2

Math Help - Polar coordinates

  1. #1
    Junior Member
    Joined
    Dec 2008
    Posts
    51

    Polar coordinates

    hi, i need help with this question

    using speherical polar coordinates (r,\theta, \phi)
    verify that the vector F =r^-2e_r is solenoidal i.e. \nabla \wedge F =0, how do i express F in vector form, and how do i go about answering this question
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by iLikeMaths View Post
    hi, i need help with this question

    using speherical polar coordinates (r,\theta, \phi)
    verify that the vector F =r^-2e_r is solenoidal i.e. \nabla \wedge F =0, how do i express F in vector form, and how do i go about answering this question
    F is already in vector form. e_r is the radial unit vector ......

    Go to your formula for the cross product in spherical coordinates and substitute the component of F. You should get the 0 vector as the answer.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 10
    Last Post: September 24th 2010, 05:33 AM
  2. Replies: 6
    Last Post: February 4th 2009, 01:12 AM
  3. polar coordinates
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: August 30th 2008, 04:33 PM
  4. Polar Coordinates and Polar Graphs
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: October 2nd 2007, 05:44 PM
  5. polar coordinates
    Posted in the Calculus Forum
    Replies: 2
    Last Post: September 5th 2007, 08:07 PM

Search Tags


/mathhelpforum @mathhelpforum