# What is the inverse triangle symbol represent?

1. Mar 11, 2013

### Outrageous

1. The problem statement, all variables and given/known data
B=magnetic flux density . A is the vector potential of magnetic field. How to get the formula B=∇A

2. Relevant equations
http://en.wikipedia.org/wiki/Magnetic_moment

3. The attempt at a solution
B=magnetic flux density . A is the vector potential of magnetic field. B=A/(area that is normal to the magnetic field). But how to get the area??
Guide will do. Thank you

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2. Mar 11, 2013

### SteamKing

Staff Emeritus
This is the differential operator called del:

http://en.wikipedia.org/wiki/Del

If you are studying magnetic fields, you will also have to study some vector calculus.

3. Mar 13, 2013

### Outrageous

Thank you.^^

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