G Force derived from G potential

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Have just started to learn general relativity. But I am encountering a problem.
The formula
Fgrav= -m ∇ φ (xB)
represents the gravitational force derived form potential.
Here, xB is B position, and φ(x) is the gravitational potential produced by A.
But I can't just understand the formula and what is ∇ in here.
Please help...
 
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The differential form of the law of gravitational potential is ∇2 Φ=4πGμ. What does it mean along with all its symbols. Comprehensive answer required.
 
aditya ver.2.0 said:
Have just started to learn general relativity. But I am encountering a problem.
The formula
Fgrav= -m ∇ φ (xB)
represents the gravitational force derived form potential.
Here, xB is B position, and φ(x) is the gravitational potential produced by A.
But I can't just understand the formula and what is ∇ in here.
Please help...

∇ is the nabla operator which may be used to write gradients, divergences and curls. If you have problems with this you should probably study vector and tensor analysis before trying GR.
 
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Orodruin said:
∇ is the nabla operator which may be used to write gradients, divergences and curls. If you have problems with this you should probably study vector and tensor analysis before trying GR.
May I have a rough knowledge about it, sir?
 
aditya ver.2.0 said:
May I have a rough knowledge about it, sir?
This is not something to learn through an internet forum. I suggest you study a basic textbook on vector analysis and ask if you have specific questions.
 
What is your background regarding partial differential equations and vectors?
 
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