# How to write 1, 2, … as a subscript to a letter?

I have two theta angles, one is \theta -1, other one is \theta -2. How can I write that properly? I want to give numbers to the thetas, putting the numbers at the bottom right end of the letter.

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Please consider giving a valid reason after you downvote the questions. Downvoting beginner questions might be OK for SO but not for TeX.SE –  percusse Oct 16 '12 at 21:22

This is called subscript and is activated (in math mode) with _:

\theta_1
\theta_2


You might (should) be interested in further reading, I recommend the Not So Short Introduction to LaTeX2e (surely available in your language).

## MWE (some examples)

\documentclass{article}
\begin{document}\noindent
\verb|\theta_1|                    gives: $$\theta_1$$                 \\
\verb|\theta_2|                    gives: $$\theta_2$$                 \\
\verb|\theta_12|                   gives: $$\theta_12$$                 \\
\verb|\theta_{12}|                 gives: $$\theta_{12}$$                 \\
\verb|\theta^1|                    gives: $$\theta^1$$                 \\
\verb|\theta^1_2|                  gives: $$\theta^1_2$$                 \\
\verb|\theta_1^2|                  gives: $$\theta_1^2$$                 \\
\verb|\theta_{x,y}^{\frac{1}{2}}|  gives: $$\theta_{x,y}^{\frac{1}{2}}$$ \\
\end{document}


## Output

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thanks a lot... –  Hasan Ferit Oct 16 '12 at 20:39
@HasanFerit I've updated my answer with some examples and a text recommendation. I seriously advise you to read some introduction because this is a basic topic. Nonetheless, you're welcome to ask any question. :) –  Qrrbrbirlbel Oct 16 '12 at 20:52
this is great..! i will check the website. thanks again. –  Hasan Ferit Oct 16 '12 at 20:56