Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Seeking help on vector calculus

  1. Jun 27, 2006 #1
    Dear all

    I'm a newbie here...having some prob and hope to have your expert advice on how to solve the equation attached.

    Thx in advance!

    Attached Files:

  2. jcsd
  3. Jun 27, 2006 #2


    User Avatar

    Do you want a general solution, or have you been given, eg., m=(m1,m2,m3), r=(r1,r2,r3), or have you specific values for the vectors m and r?

    Either way, do the cross product first, then divide by the scalar magnitude, then apply the curl function.
  4. Jun 27, 2006 #3
    hi J77

    Thx for your reponse.. appreciate your advice...

    In fact, the solution to the above is given as attached... I can't seem to derive to the stated form... :cry:

    Would really appreciate if any guru can shed some light... :redface:

    Attached Files:

  5. Jun 28, 2006 #4


    User Avatar

    Quick reply, but to me the transformation seems to lie in using Lagrange's formula:

    [tex]a\times(b\times c)=b(a\cdot c)-c(a\cdot b)[/tex]

    ie. "BAC minus CAB"
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook