1. ## Symbol help

What does a o with a line through it mean?

If you need more help can you give me the latex code for it and i can do a question with it contained thanks.

2. Hello,

$\theta$ ? That's a greek letter, called "theta"

Or $\emptyset$ ? That's the empty set.

But since you put this in calculus, it's more likely the greek letter

3. Originally Posted by Moo
Hello,

$\theta$ ? That's a greek letter, called "theta"

Or $\emptyset$ ? That's the empty set.

But since you put this in calculus, it's more likely the greek letter
nah the bottom one

Find a scalar function such that $\emptyset$(x,y,z) such that F(x,y,z) = delta(upside down traingle) $\emptyset$(x,y,z)

what do i have to do?

I have the equation F(x,y,z) by the way

nah the bottom one

Find a scalar function such that $\emptyset$(x,y,z) such that F(x,y,z) = delta(upside down traingle) $\emptyset$(x,y,z)

what do i have to do?

I have the equation F(x,y,z) by the way
The empty set makes no sense to me here. Are you sure it isn't find a scalar function $\phi(x,y,z)$ such that $F(x,y,z)=\nabla \phi(x,y,z)$?

5. Originally Posted by Drexel28
The empty set makes no sense to me here. Are you sure it isn't find a scalar function $\phi(x,y,z)$ such that $F(x,y,z)=\nabla \phi(x,y,z)$?
yes its that

what does this mean?

6. Greek letter "phi"
$\nabla$ is the gradient.