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Did not study for a long time . . .

  1. Apr 22, 2007 #1
    Hi, its a home work problem, but im dont loking for an answer, what i need is a resourse to refresh my old mind :)

    the question is:

    given - H(x1,y1,z1)=H1
    gradH=J
    J=a*i+b*j+c*k (i roof, j roof, k roof)

    find -

    H(x2,y2,z2)

    thank alot
     
  2. jcsd
  3. Apr 22, 2007 #2
    I am very confused find H of the second set of points?
     
  4. Apr 22, 2007 #3

    cristo

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    Staff Emeritus
    Science Advisor

    What's the actual question here? Are you asked to find H such that gradH=J ?
     
  5. Apr 22, 2007 #4
    yes, im asked to fined H at (x2,y2,z2)

    yes, im asked to fined H at (x2,y2,z2)
     
  6. Apr 22, 2007 #5
    Just integrate. grad H = ai+bj+ck means that dH/dx=a, dH/dy=b, dH/dz=c. Integrating the first gives you H=ax+C(y,z), where C is the constant of integration, which depends on y and z (they are constant with respect to x). Put that into the next equation (dH/dy=b), and continue.
     
  7. Apr 22, 2007 #6
    thanks alot and if you can recomeend a book on the topic

    thanks alot and if you can recomeend a book on the topic
     
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