# Divergence Curl

• Feb 12th 2013, 10:22 AM
ssss
Divergence Curl
Div Curl F(F bar not only F) is = ?

Is it 0 or 1

Div Curl F = ?

0 or 1

• Feb 12th 2013, 10:43 AM
ILikeSerena
Re: Divergence Curl
Quote:

Originally Posted by ssss
Div Curl F(F bar not only F) is = ?

Is it 0 or 1

Div Curl F = ?

0 or 1

Hi ssss! :)

Div Curl F = 0

See e.g. here.
• Feb 12th 2013, 07:55 PM
hollywood
Re: Divergence Curl
I don't understand what you mean by "Div Curl F(F bar not only F)".

Not that I'd necessarily be able to solve it if I understood it, but maybe someone else would.

- Hollywood
• Feb 12th 2013, 11:17 PM
ILikeSerena
Re: Divergence Curl
Quote:

Originally Posted by hollywood
I don't understand what you mean by "Div Curl F(F bar not only F)".

Not that I'd necessarily be able to solve it if I understood it, but maybe someone else would.

- Hollywood

I believe the OP meant that when he wrote F, he did not just mean F, but F with a bar over it.
• Feb 13th 2013, 06:59 AM
ssss
Re: Divergence Curl
Quote:

Originally Posted by hollywood
I don't understand what you mean by "Div Curl F(F bar not only F)".

Not that I'd necessarily be able to solve it if I understood it, but maybe someone else would.

- Hollywood

There are two kinds of Divergence Curl F and FwithBar(F bar) , so I want to know the value of both
• Feb 13th 2013, 07:07 AM
ILikeSerena
Re: Divergence Curl
Quote:

Originally Posted by ssss
There are two kinds of Divergence Curl F and FwithBar(F bar) , so I want to know the value of both

I'm afraid there's only one version:

$\nabla \cdot (\nabla \times \vec{\mathbf{F}}) = \text{div } \text{curl } \vec{\mathbf{F}} = 0$

Curl is an operator that can only work on a 3 dimensional vector.