How can I make math (by latex) available in my post?

[lqg]

How can I make math (by latex) available in my post?

Could anyone help me with this?

Thanks a lot in advance!

 

[nazgjunk]

Hint: read the stickies. There is a sticky about this, find it yourself.

 

[Gokul43201]

https://www.physicsforums.com/showthread.php?t=8997

 

[VietDao29]

Hint: read the stickies. There is a sticky about this, find it yourself.

?
What kind of help is this?
What are the hints for? Is this a homework forums?

I don't understand!

 

[nazgjunk]

There is a sticky (a post that is marked by the moderators to show up on top) about latex stuff, on the location Gokul43201 kindly pointed out. Sorry for being slightly rude at the time.

 

[Abuda]

$$\frac{a}{b}$$