Did not study for a long time . . .

  • Thread starter nimigi
  • Start date
  • #1
4
0
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
 

Answers and Replies

  • #2
I am very confused find H of the second set of points?
 
  • #3
cristo
Staff Emeritus
Science Advisor
8,107
73
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
What's the actual question here? Are you asked to find H such that gradH=J ?
 
  • #4
4
0
yes, im asked to fined H at (x2,y2,z2)

What's the actual question here? Are you asked to find H such that gradH=J ?
yes, im asked to fined H at (x2,y2,z2)
 
  • #5
53
0
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.
 
  • #6
4
0
thanks alot and if you can recomeend a book on the topic

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

Related Threads on Did not study for a long time . . .

Replies
6
Views
2K
Replies
10
Views
2K
Replies
8
Views
2K
  • Last Post
Replies
11
Views
2K
Replies
2
Views
2K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
2
Views
1K
Replies
7
Views
5K
Top