How to write degree symbol in latex?

Question

I want to write the degree symbol (e.g., 45^o) in a latex document. What is the command to write it?

Answer 1

You can use one of the following to write the degree symbol in latex:

\textdegree 

or 

$^{\circ}$

Here is an example to write 45^o:

45$^{\circ}$

or

45\textdegree