How do I make a Complex 'C' in Latex for sets?

[mesa]

Hello all, I was wondering how to make that nice looking Complex 'C' when writing a set in Latex. For example,
$$\{k\in C\mid k>0\}$$ looks okay but can be better.

 

[DeIdeal]

\mathbb{C}? (The ? is not a part of it)

 

[mesa]

$$\{k\in \mathbb{C}\mid k>0\}$$

That's it, thanks!

 

[DeIdeal]

No problem! For future reference, other common LaTeX fonts include

Bold \mathbf $\mathbf{a},\mathbf{A}$
Roman (not italicized unlike the regular math text) \mathrm $\mathrm{a},\mathrm{A}$
Fraktur \mathfrak $\mathfrak{a},\mathfrak{A}$
Calligraphic \mathcal $\mathcal{A}$
Script \mathscr $\mathscr{A}$

And probably something I forgot.

 

[micromass]

https://www.physicsforums.com/showpost.php?p=3977517&postcount=3

 

[mesa]

https://www.physicsforums.com/showpost.php?p=3977517&postcount=3

Very useful, and I already learned something from it, the '## ##' for writing math inline with text!
I spent so much time trying to figure that out just a few days ago...

Thanks for the link!